Las Vegas police look for motive in deadliest mass shooting in modern U.S. history

Las Vegas police look for motive in deadliest mass shooting in modern U.S. history

By Alexandria Sage and Lisa Girion

LAS VEGAS (Reuters) – Police sought clues on Tuesday to explain why a retiree who enjoyed gambling but had no criminal record set up a vantage point in a high-rise Las Vegas hotel and poured gunfire onto a concert below, slaying dozens of people before killing himself.

The Sunday night shooting spree from a 32nd-floor window of the Mandalay Bay hotel, on the Las Vegas Strip, killed at least 59 people before the gunman turned a weapon on himself. More than 500 people were injured, some trampled, in the deadliest mass shooting in modern U.S. history.

A candlelight vigil is pictured on the Las Vegas strip following a mass shooting at the Route 91 Harvest Country Music Festival in Las Vegas, Nevada, U.S., October 2, 2017. REUTERS/Chris Wattie

A candlelight vigil is pictured on the Las Vegas strip following a mass shooting at the Route 91 Harvest Country Music Festival in Las Vegas, Nevada, U.S., October 2, 2017. REUTERS/Chris Wattie

The gunman, identified as Stephen Paddock, 64, left no immediate hint of his motive for the arsenal of high-powered weaponry he amassed, including 42 guns, or the carnage he inflicted on a crowd of 22,000 attending an outdoor country music festival.

Paddock was not known to have served in the military, to have suffered from a history of mental illness or to have registered any inkling of social disaffection, political discontent or radical views on social media.

“He was a sick man, a demented man,” U.S. President Donald Trump told reporters. “Lot of problems, I guess, and we’re looking into him very, very seriously, but we’re dealing with a very, very sick individual”

He declined to answer a question about whether he considered the attack an act of domestic terrorism.

U.S. officials also discounted a claim of responsibility by the Islamic State militant group.

Police said they believed Paddock acted alone.

“We have no idea what his belief system was,” Clark County Sheriff Joseph Lombardo told reporters on Monday. “I can’t get into the mind of a psychopath.”

Although police said they had no other suspects, Lombardo said investigators wanted to talk with Paddock’s girlfriend and live-in companion, Marilou Danley, who he said was traveling abroad, possibly in Tokyo.

Lombardo also said detectives were “aware of other individuals” who were involved in the sale of weapons Paddock acquired.

The closest Paddock appeared to have ever come to a brush with the law was for a traffic infraction, authorities said.

As with previous mass shootings that have rocked the United States, the massacre in Las Vegas stirred the ongoing debate about gun ownership, which is protected by the Second Amendment to the Constitution, and about how much that right should be subject to controls.

Democrats reiterated what is generally the party’s stance, that legislative action is needed to reduce mass shootings. Republicans argue that restrictions on lawful gun ownership cannot deter criminal behavior.

“We’ll be talking about gun laws as time goes by,” Trump said.

Las Vegas Metro Police and medical workers stage in the intersection of Tropicana Avenue and Las Vegas Boulevard South. REUTERS/Las Vegas Sun/Steve Marcus

Las Vegas Metro Police and medical workers stage in the intersection of Tropicana Avenue and Las Vegas Boulevard South. REUTERS/Las Vegas Sun/Steve Marcus

ITINERANT EXISTENCE

The death toll, which officials said could rise, surpassed last year’s record massacre of 49 people at a gay nightclub in Orlando, Florida, by a gunman who pledged allegiance to Islamic State.

Paddock seemed atypical of the overtly troubled, angry young men who experts said have come to embody the profile of most mass shooters.

Public records on Paddock point to an itinerant existence across the U.S. West and Southeast, including stints as an apartment manager and aerospace industry worker. But Paddock appeared to be settling in to a quiet life when he bought a home in a Nevada retirement community a few years ago, about an hour’s drive from Las Vegas and the casinos he enjoyed.

His brother, Eric, described Stephen Paddock as financially well-off and an enthusiast of video poker games and cruises.

“We’re bewildered, and our condolences go out to the victims,” Eric Paddock said in a telephone interview from Orlando, Florida. “We have no idea in the world.”

Las Vegas’s casinos, nightclubs and shopping draw more than 40 million visitors from around the world each year. The Strip was packed with visitors when the shooting started shortly after 10 p.m. local time on Sunday during the Route 91 Harvest music festival.

The gunfire erupted as country music star Jason Aldean was performing. He ran off stage as the shooting progressed.

Video of the attack showed throngs of people screaming in horror and cowering on the open ground as extended bursts of gunfire strafed the crowd from above, from a distance police estimated at more than 500 yards (460 meters).

The bloodshed ended after police swarming the hotel closed in on the gunman, who shot and wounded a hotel security officer through the door of his two-room suite and then killed himself before police entered, authorities said.

Police said 23 guns were found in Paddock’s suite.

Lombardo said a search of the suspect’s car turned up a supply of ammonium nitrate, a fertilizer compound that can be formed into explosives and was used in the 1995 Oklahoma City bombing of a federal office building that killed 168 people.

Police found another 19 firearms, some explosives and thousands of rounds of ammunition at Paddock’s home in Mesquite, about 90 miles (145 km) northeast of Las Vegas.

They also obtained a warrant to search a second house connected to Paddock in Reno, Nevada.

Chris Sullivan, the owner of the Guns & Guitars shop in Mesquite, issued a statement confirming that Paddock was a customer who cleared “all necessary background checks and procedures,” and said his business was cooperating with investigators.

“He never gave any indication or reason to believe he was unstable or unfit at any time,” Sullivan said. He did not say how many or the kinds of weapons Paddock purchased there.

Lombardo said investigators knew that a gun dealer had come forward to say that he had sold weapons to the suspect, but it was not clear if he was referring to Sullivan. He said police were aware of “some other individuals who were engaged in those transactions,” including at least one in Arizona.

(Additional reporting by Jonathan Allen and Frank McGurty in New York, Doina Chiacu and Jeff Mason in Washington, Bernie Woodall in Fort Lauderdale, Florida, Jon Herskovitz in Austin, Texas, Ali Abdelaty in Cairo and Brendan O’Brien in Milwaukee; Writing by Steve Gorman and Scott Malone; Editing by Paul Tait and Frances Kerry)

Violent crime in U.S. rose in 2016 vs. 2015: Justice Department

WASHINGTON (Reuters) – Violent crime rose 4.1 percent nationwide in 2016 compared to the 2015 estimates, the U.S. Justice Department said on Monday.

Violent crime, which the report defines as non-negligent killings, rape, robbery and aggravated assault, had steadily dropped since 2006, but had increased slightly in 2015, according to the annual report by the Federal Bureau of Investigation.

“The report … reaffirms that the worrying violent crime increase that began in 2015 after many years of decline was not an isolated incident,” the Justice Department said in a statement.

The report said an estimated 1.2 million violent crimes took place across the country in 2016, an increase of 4.1 percent over the 2015 estimate.

In cities with populations larger than 100,000, the violent crime rate in 2016 was up 3.4 percent compared to the estimate from 2015.

President Donald Trump, who took office in January, has said he would do more to fight criminal gangs and would send in federal help to stem violent crime in Chicago.

The Justice Department has reversed or distanced itself from many of the Obama administration’s policies, including consent decrees to reform police departments and limits on transferring certain types of military gear to local law enforcement agencies.

 

(Reporting by Makini Brice; Editing by Bill Trott)

 

FBI chief sees no evidence of White House interference in Russia probe

FILE PHOTO: Christopher Wray testifies before a Senate Judiciary Committee confirmation hearing on his nomination to be the next FBI director on Capitol Hill in Washington, U.S., July 12, 2017. REUTERS/Carlos Barria

By Sarah N. Lynch

WASHINGTON (Reuters) – FBI Director Christopher Wray said on Thursday he has “not detected any whiff of interference” by the White House into the ongoing investigation into Russian meddling in the 2016 presidential election.

Speaking publicly for the first time since being confirmed as head of the Federal Bureau of Investigation, Wray also expressed confidence in Robert Mueller, the special counsel investigating whether President Donald Trump’s campaign colluded with Russia during the election.

“I can say very confidently that I have not detected any whiff of interference with that investigation,” Wray said during a panel discussion at the Intelligence and National Security Summit in Washington.

Wray was installed as FBI director after his predecessor, James Comey, was fired by Trump in May. In an interview with NBC after Comey’s removal, Trump admitted he was thinking about “this Russia thing” when he decided to fire the then-FBI chief.

Comey later told Congress he believed Trump had tried to get him to drop an FBI probe into former national security adviser, Michael Flynn, as part of the broader Russia investigation – testimony that has raised questions about whether Trump was potentially trying to obstruct justice.

The White House has repeatedly denied the Trump campaign colluded with Russia in the election.

Trump’s advisers and allies also have questioned Mueller’s independence and credibility, with some pointing out that he has hired attorneys who have given political donations to Democrats.

But Wray said he has “enormous respect” for Mueller, who is also a former FBI director. He stressed that Mueller is running the probe but said the FBI is assisting by dedicating agents and providing other support to the investigation.

Wray also reiterated his confidence in a January report compiled by U.S. intelligence agencies which concluded that Russia had interfered in the 2016 election and tried to tilt it in Trump’s favor – a finding Trump has often questioned.

Prior to his confirmation as FBI director, Wray had only read a non-classified version of the report.

“I have no reason to doubt the conclusions that the hard- working people who put that together came to,” Wray said.

(Reporting by Sarah N. Lynch; Editing by Paul Simao)

Man arrested in plot to bomb Oklahoma bank

Jerry Drake Varnell, is pictured in this undated handout photo obtained by Reuters August 14, 2017. Oklahoma Department of Corrections/Handout via REUTERS

(Reuters) – An Oklahoma man was arrested after what he thought was an attempt over the weekend to bomb an Oklahoma City bank building as part of an anti-government plot, U.S. prosecutors said on Monday.

The Federal Bureau of Investigation arrested Jerry Drake Varnell, 23, on Saturday after an undercover agent posed as a co-conspirator and agreed to help him build what he believed was a 1,000-pound (454 kg) explosive.

Varnell had initially planned to bomb the U.S. Federal Reserve in Washington in a manner similar to the 1995 explosion at a federal building in Oklahoma City that killed 168 people, according to a complaint.

FBI agents arrested Varnell after he went as far as making a call early on Saturday morning to a mobile phone he believed would detonate a device in a van parked next to a BancFirst Corp building in downtown Oklahoma City, the complaint said.

“This arrest is the culmination of a long-term domestic terrorism investigation involving an undercover operation, during which Varnell had been monitored closely for months as the alleged bomb plot developed,” federal prosecutors said in a statement. “The device was actually inert, and the public was not in danger.”

Varnell, of Sayre, Oklahoma, was charged with malicious attempted destruction of a building in interstate commerce. He is expected to make his first court appearance in federal court in Oklahoma City on Monday afternoon.

 

(Reporting by Joseph Ax in New York and Bernie Woodall in Fort Lauderdale, Florida; Editing by Chizu Nomiyama and Lisa Von Ahn)

 

FBI raided former Trump campaign manager Manafort’s home in July

FILE PHOTO: Paul Manafort, senior advisor to Republican U.S. presidential candidate Donald Trump, exits following a meeting of Donald Trump's national finance team at the Four Seasons Hotel in New York City, U.S., June 9, 2016. REUTERS/Brendan McDermid/File Photo

By Sarah N. Lynch and Patricia Zengerle

WASHINGTON (Reuters) – FBI agents seized documents and other material last month at the Virginia home of Paul Manafort, President Donald Trump’s former campaign manager, as part of a special counsel’s probe into alleged Russian meddling in the 2016 U.S. presidential election, a spokesman for Manafort said on Wednesday.

The predawn raid was conducted at Manafort’s home in the Washington suburb of Alexandria without advance warning on July 26, a day after Manafort had met with Senate Intelligence Committee staff members, the Washington Post reported, citing unidentified people familiar with the probe.

The search warrant was wide-ranging and FBI agents working with Robert Mueller, the special counsel named by the U.S. Justice Department in May to head the investigation, departed the home with various records, the Post said. Investigators were looking for tax documents and foreign banking records, the New York Times reported.

Manafort spokesman Jason Maloni confirmed the raid had taken place.

“FBI agents executed a search warrant at one of Mr. Manafort’s residences. Mr. Manafort has consistently cooperated with law enforcement and other serious inquiries and did so on this occasion as well,” Maloni said in an email.

The raid was the latest indication of the intensifying of Mueller’s probe, which Trump has derided as a “witch hunt.” Allegations of possible collusion between people associated with Trump’s campaign and Moscow have dogged the Republican president since he took office in January.

U.S. intelligence agencies concluded that Russia interfered in the presidential race, in part by hacking and releasing emails embarrassing to Trump’s Democratic opponent, Hillary Clinton, to help him get elected.

Manafort has been a key figure in the congressional and federal investigations into the matter. Mueller’s team is examining money-laundering accusations against Manafort, poring over his financial and real estate records in New York as well as his involvement in Ukrainian politics, two officials told Reuters last month.

Congressional committees are looking at a June 2016 meeting in New York with a Russian lawyer organized by Trump’s eldest son, Donald Trump Jr., who released emails last month that showed he welcomed the prospect of receiving damaging information about Clinton at the meeting. Manafort attended the meeting.

The Federal Bureau of Investigation did not immediately return a request for comment on the raid. Joshua Stueve, a spokesman for Mueller’s office, declined to confirm the raid.

Manafort has been cooperating with the congressional committees in their Russia probes, meeting with staff members behind closed doors and turning over documents. He also has been in talks with them about testifying publicly.

He met with investigators from Senate Intelligence Committee staff last month and has been negotiating an appearance before the Judiciary Committee.

Committee leaders said they wanted to discuss not just the campaign, but also Manafort’s political work on behalf of interests in Ukraine. Russia’s aggression in Ukraine was one reason the U.S. Congress defied Trump and passed new sanctions on Russia last month.

Manafort previously worked as a consultant to a pro-Russia political party in Ukraine and helped support the country’s Kremlin-backed former leader, Viktor Yanukovich. According to a financial audit reported by the New York Times, he also once owed $17 million to Russian shell companies.

A Senate Judiciary Committee aide said the panel on Aug. 2 received approximately 20,000 pages of documents from Trump’s presidential campaign that it requested for its own Russia investigation, as well as about 400 pages of documents from Manafort the same day.

(Reporting by Sarah N. Lynch, Patricia Zengerle and Richard Cowan; Writing by Doina Chiacu; Editing by Will Dunham)

Maryland man indicted for attempted murder of FBI agent, Islamic State support

(Reuters) – A federal grand jury has indicted a Maryland man on charges of attempting to murder an FBI agent and trying to provide support to Islamic State militants, U.S. prosecutors said on Tuesday.

Nelash Das, 25, of Landover Hills, was arrested by federal agents in September 2016 as he was preparing to attack a U.S. military service member. He was accompanied by a person who was a paid FBI informant, court records show.

Das, a Bangladeshi citizen who is a legal U.S. resident, was indicted for attempting to provide support to the Islamic State from October 2015 to September 2016, the Justice Department said in a statement.

The statement and the indictment gave no details about the charge of attempting to murder an agent of the Federal Bureau of Investigation. Das also was indicted on a firearms offense.

Officials were not immediately available to comment.

The three-count indictment supersedes a charge filed shortly after his arrest.

Das told the informant that he was committed to attacking a military service member, adding, “That’s my goal in life,” according to an October 2016 affidavit.

Das remains in custody and if convicted faces up to life in prison. His attorney, federal public defender Julie Stelzig, did not respond to requests for comment.

(Reporting by Ian Simpson in Washington; Editing by Dan Grebler)

Wray confirmed by Senate to lead FBI after Comey firing

Wray confirmed by Senate to lead FBI after Comey firing

By Julia Edwards Ainsley

WASHINGTON (Reuters) – The U.S. Senate on Tuesday confirmed former Justice Department lawyer Christopher Wray as FBI chief, nearly three months after the agency’s previous director, James Comey, was fired by President Donald Trump.

Wray, who was confirmed by vote of 92-5, will take charge of the country’s top domestic law enforcement agency during a federal probe into allegations of collusion between the Trump presidential campaign and Russia.

Since the dismissal of Comey on May 9, the Justice Department has appointed Robert Mueller as special counsel to oversee the investigation with the help of the FBI. Russia denies any interference, and Trump has denied collusion with Russia.

Wray vowed in his confirmation hearing last month to remain independent and not be swayed by politics or pressure from the president. He also praised Muller as the “consummate straight shooter.”

He also worked with Comey on the government’s case in the Enron Corp fraud scandal in the early 2000s.

During the confirmation hearing, Republican Senate Judiciary Committee Chairman Chuck Grassley said Wray’s background showed he was committed to independence, an attribute he said was “vitally important” in the next FBI director.

Wray served as assistant attorney general in charge of the criminal division at the Justice Department under former Republican President George W. Bush.

Former Attorney General Eric Holder and former Deputy Attorney General Sally Yates, both Democrats who served under President Barack Obama, endorsed Wray.

(Reporting by Julia Edwards Ainsley; Editing by Peter Cooney)

Lawyer for U.S. Army sergeant accused of terrorism suggests entrapment

A photograph with a redacted date, and entered into federal court as an exhibit to support the government's motion to keep U.S. Army Sergeant Ikaika Erik Kang in detention without bond, shows what is described as Kang holding the Islamic State Flag after pledging allegiance to the Islamic State. Kang is charged with trying to provide material support to Islamic State extremists. the U.S. District Court for the District of Hawaii/Handout via REUTERS

By Hunter Haskins

HONOLULU (Reuters) – The lawyer for a U.S. Army sergeant charged in Hawaii with trying to provide material support to Islamic State extremists said on Thursday his client suffers from mental illness that FBI agents exploited in a “sting” operation leading to his arrest.

Questions about Ikaika Erik Kang’s state of mind and the possibility of entrapment were raised by defense lawyer Birney Bervar in remarks to reporters after his client was ordered to remain in jail without bond.

U.S. Magistrate Judge Kenneth Mansfield in Honolulu ruled after a brief hearing that Kang, 34, posed a flight risk and a danger to the public if released pending further proceedings. The defense did not object to his continued incarceration.

Bervar said after the ruling he told his client: “You’re going to stay in for now, and we’re going to get you evaluated and see what’s going on.”

He said he believed Kang was suffering from post-traumatic stress disorder or some other mental problem that the Army failed to address properly after Kang returned from deployments to Iraq in 2011 and Afghanistan in 2014.

According to a Federal Bureau of Investigation affidavit, Kang was reprimanded several times dating back to 2011 for threatening fellow service members and expressing extremist views while on duty.

The Army referred the matter to the FBI in 2016.

Kang soon became the target of what the FBI described in its affidavit as an elaborate sting operation employing several undercover agents and other “confidential human sources” who posed as Islamic State operatives and sympathizers.

“It looks to me like they’ve exploited his mental illness and thrown gasoline on the fire of his mental illness to get him to commit a crime that they could arrest him for,” Bervar said.

Asked if he was suggesting a case of entrapment, Bervar said: “It sounds pretty close to that, doesn’t it?”

Bervar said he would seek a “full mental health evaluation” for his client.

The government, in support of its motion to keep Kang detained without bond, entered several photographs said to show Kang demonstrating military combat tactics.

Two other images purport to show him kissing and then holding to his forehead a folded flag of Islamic State, also known as ISIS, the militant organization that had seized large swaths of territory in Iraq and Syria. He is shown in a third photo holding up an unfurled ISIS flag.

Kang, an air traffic control specialist with extensive military training in hand-to-hand combat, was arrested by the FBI on Saturday following a year-long undercover investigation.

The FBI said he swore allegiance to Islamic State leader Abu Bakr al-Baghdadi, made training videos for the extremist group and purchased a drone aircraft intended to help ISIS fighters in the Middle East evade enemy tanks in battle.

Kang is also accused of trying to furnish ISIS with classified and other sensitive military documents that would have assisted the group in its combat tactics.

(Additional reporting and writing by Steve Gorman in LOS ANGELES; Editing by Paul Tait)

Trump’s FBI pick vows independence, says Russia probe no ‘witch hunt’

Christopher Wray testifies before a Senate Judiciary Committee confirmation hearing on his nomination to be the next FBI director on Capitol Hill in Washington, U.S., July 12, 2017. REUTERS/Carlos Barria

By Julia Edwards Ainsley

WASHINGTON (Reuters) – President Donald Trump’s pick to head the FBI, Christopher Wray, on Wednesday said he would refuse to pledge loyalty to Trump, rejected his description of the probe into Russian election meddling as a “witch hunt,” and vowed to quit if told by the president to do something unlawful.

Wray, nominated by Trump on June 7 to replace the fired James Comey as Federal Bureau of Investigation director, firmly sought to establish independence from the Republican president and even said it would be “highly unlikely” that he would agree to meet him in a one-on-one situation.

Wray appeared at his U.S. Senate Judiciary Committee confirmation hearing amid an uproar in Washington over 2016 emails released on Tuesday involving the president’s son, Donald Trump Jr. The emails showed the president’s son agreeing last year to meet a woman he was told was a Russian government lawyer who might have damaging information about Democratic White House rival Hillary Clinton as part of Moscow’s official support for his father.

Wray deflected specific questions from Republican Senator Lindsey Graham about the president’s son’s emails, but said, “Any threats or effort to interfere with our election from any nation-state or any non-state actor is the kind of thing the FBI would want to know.”

Trump’s son did not notify the FBI and wrote that “I love it” of the Russian’s offer of information about Clinton.

Wray, who appeared on target to win confirmation, also said he had no reason to doubt the U.S. intelligence community’s finding that Russia interfered with the election to help Trump get elected in part by hacking and releasing emails damaging to Clinton.

In the aftermath of Comey’s firing, the Justice Department named Robert Mueller, himself a former FBI director, to serve as special counsel looking into alleged Russian interference in the 2016 presidential race to help Trump get elected and potential collusion between Moscow and Trump associates.

Trump fired Comey on May 9 and later cited the “Russia thing” as his reason.

Trump often has called the Russia probe a “witch hunt.” The Russia matter has dogged Trump’s first six months in office.

“I do not consider Director Mueller to be on a witch hunt,” Wray told Republican Graham.

Wray and Comey served together in the Justice Department under Republican former President George W. Bush, and both worked on the government’s case in the Enron Corp fraud scandal in the early to mid-2000s.

Wray said he was “very committed” to supporting Mueller in the special counsel investigation, calling him “the consummate straight shooter and somebody I have enormous respect for.”

Dianne Feinstein asked Wray to tell the committee “if you learn about any machinations to tamper with” Mueller’s probe.

“Understood,” Wray responded.

NO LOYALTY OATH

Wray said he spoke with no one at the White House about Comey’s firing. He said no one at the White House had demanded that he pledge his loyalty to Trump, as Comey said the president demanded of him, and said he would not give such an assurance if asked.

“My loyalty is to the Constitution, to the rule of law and to the mission of the FBI. And no one asked me for any kind of loyalty oath at any point during this process, and I sure as heck didn’t offer one,” Wray said.

Comey previously testified to the same committee that Trump pressed him in a one-on-one session to drop the FBI investigation into former national security advisor Michael Flynn’s ties to Russia and said he felt he was fired in a bid by the president to undercut the Russia probe.

Democratic Senator Patrick Leahy asked Wray, “If the president asks you to do something unlawful or unethical, what do you say?”

“First, I would try to talk him out of it. And if that failed, I would resign,” Wray said.

Asked by Democratic Senator Dick Durbin if he would ever meet in the Oval Office with the president with no one else present, Wray said, “I think it would be highly unlikely.”

Wray is a former U.S. Justice Department lawyer who has prosecuted and defended white-collar crime cases and represented New Jersey Governor Chris Christie in a political scandal.

The allegation involving Trump pressing Comey over the Flynn probe raised questions about whether Trump’s behavior amounted to obstruction of justice, a potential issue in any potential future effort in Congress to impeach the Republican president and remove him from office.

Wray repeatedly vowed independence.

“There’s only one right way to do this job, and that is with strict independence, by the book, playing it straight, faithful to the Constitution, faithful to our laws, and faithful to the best practices of the institution, without fear, without favoritism and certainly without regard to any partisan political influence,” Wray said.

(Reporting by Julia Edwards Ainsley; Editing by Will Dunham)

U.S. warns businesses of hacking campaign against nuclear, energy firms

Department of Homeland Security emblem is pictured at the National Cybersecurity & Communications Integration Center (NCCIC) located just outside Washington in Arlington, Virginia September 24, 2010. REUTERS/Hyungwon Kang/File Photo

By Jim Finkle

TORONTO (Reuters) – The U.S government warned industrial firms this week about a hacking campaign targeting the nuclear and energy sectors, the latest event to highlight the power industry’s vulnerability to cyber attacks.

Since at least May, hackers used tainted “phishing” emails to “harvest credentials” so they could gain access to networks of their targets, according to a joint report from the U.S. Department of Homeland Security and Federal Bureau of Investigation.

The report provided to the industrial firms was reviewed by Reuters on Friday. While disclosing attacks, and warning that in some cases hackers succeeded in compromising the networks of their targets, it did not identify any specific victims.

“Historically, cyber actors have strategically targeted the energy sector with various goals ranging from cyber espionage to the ability to disrupt energy systems in the event of a hostile conflict,” the report said.

Homeland Security and FBI officials could not be reached for comment on the report, which was dated June 28.

The report was released during a week of heavy hacking activity.

A virus dubbed “NotPetya” attacked on Tuesday, spreading from initial infections in Ukraine to businesses around the globe. It encrypted data on infected machines, rendering them inoperable and disrupting activity at ports, law firms and factories.

On Tuesday the energy-industry news site E&E News reported that U.S. investigators were looking into cyber intrusions this year at multiple nuclear power generators.

Reuters has not confirmed details of the E&E News report, which said there was no evidence safety systems had been compromised at affected plants.

The activity described in the U.S. government report comes at a time when industrial firms are particularly anxious about threat that hackers pose to their operations.

Industrial firms, including power providers and other utilities, have been particularly worried about the potential for destructive cyber attacks since December 2016, when hackers cut electricity in Ukraine.

U.S. nuclear power generators PSEG <PEG.N>, SCANA Corp <SCG.N> and Entergy Corp <ETR.N> said they were not impacted by the recent cyber attacks. SCANA’s V.C. Summer nuclear plant in South Carolina shut down on Thursday due to a problem with a valve in the non-nuclear portion of the plant, a spokesman said.

Another nuclear power generator, Dominion Energy <D.N>, said it does not comment on cyber security.

Two cyber security firms said on June 12 that they had identified the malicious software used in the Ukraine attack, which they dubbed Industroyer, warning that it could be easily modified to attack utilities in the United States and Europe.

Industroyer is only the second piece of malware uncovered to date that is capable of disrupting industrial processes without the need for hackers to manually intervene.

The first, Stuxnet, was discovered in 2010 and is widely believed by security researchers to have been used by the United States and Israel to attack Iran’s nuclear program.

The U.S. government report said attackers conducted reconnaissance to gain information about the individuals whose computers they sought to infect so that they create “decoy documents” on topics of interest to their targets.

In an analysis, it described 11 files used in the attacks, including malware downloaders and tools that allow the hackers to take remote control of victim’s computers and travel across their networks.

Chevron Corp <CVX.N>, Exxon Mobil Corp <XOM.N> and ConocoPhillips <COP.N>, the three largest U.S. oil producers, declined to comment on their network security.

(Reporting by Jim Finkle; Additional reporting by Timothy Gardner in Washington and Ernest Scheyder in Houston; editing by Grant McCool and Tom Brown)