By David Brunnstrom, Matt Spetalnick and Jarrett Renshaw

WASHINGTON (Reuters) – U.S. President Joe Biden on Monday threatened to reimpose sanctions on Myanmar following a coup by the country’s military leaders and called for a concerted international response to press them to relinquish power.

Biden condemned the military’s takeover from the civilian-led government on Monday and its detention of elected leader and Nobel laureate Aung San Suu Kyi as “a direct assault on the country’s transition to democracy and the rule of law.”

The Myanmar crisis marks a first major test of Biden’s pledge to collaborate more with allies on international challenges, especially on China’s rising influence, in contrast to former President Donald Trump’s often go-it-alone “America First” approach.

It also represented a rare policy alignment between Biden’s fellow Democrats and top Republicans as they joined in denouncing the coup and urging Myanmar’s military face consequences.

“The international community should come together in one voice to press the Burmese military to immediately relinquish the power they have seized, release the activists and officials they have detained,” Biden said in a statement.

“The United States removed sanctions on Burma over the past decade based on progress toward democracy. The reversal of that progress will necessitate an immediate review of our sanction laws and authorities, followed by appropriate action,” he said.

Biden also called on the military in Myanmar, which is also known as Burma, to lift all restrictions on telecommunications and to refrain from violence against civilians.

He said the United States was “taking note of those who stand with the people of Burma in this difficult hour.”

“We will work with our partners throughout the region and the world to support the restoration of democracy and the rule of law, as well as to hold accountable those responsible for overturning Burma’s democratic transition,” he said.

Suu Kyi’s National League for Democracy party won a landslide 83% in a Nov. 8 election. The army said in taking over in the early hours of Monday that it had responded to what it called election fraud.

‘INTENSIVE’ CONSULTATIONS

White House spokeswoman Jen Psaki told a regular news briefing the United States has had “intensive” conversations with allies about Myanmar. She declined to say what other actions were under consideration aside from sanctions.

Asked whether Biden’s assertion that the United States was “taking note” of how other countries respond was a message to China, Psaki told reporters: “It’s a message to all countries in the region.”

The top Democrat on the Senate Foreign relations committee, Robert Menendez, said the United States and other countries “should impose strict economic sanctions, as well as other measures” against Myanmar’s army and the military leadership if they did not free the elected leaders and remove themselves from government.

Menendez also charged that the Myanmar army was guilty of “genocide” against minority Rohingya Muslims – a determination yet to be stated by the U.S. government – and of a sustained campaign of violence against other minorities.

U.S. Senate Republican leader Mitch McConnell, who like members of the Biden administration has had close past ties with Suu Kyi, called the arrests “horrifying” and demanded a tough response.

“The Biden Administration must take a strong stand and our partners and all democracies around the world should follow suit in condemning this authoritarian assault on democracy,” he said.

McConnell added that Washington needed to “impose costs” on those behind the coup.

The events in Myanmar are a significant blow for the Biden administration and its effort to forge a robust Asia Pacific policy to stand up to China.

Many of Biden’s Asia policy team, including its head, Kurt Campbell, are veterans of the Obama administration, which at the end of former President Barack Obama’s term hailed its work to end decades of military rule in Myanmar as a major foreign policy achievement. Biden served as Obama’s vice president.

Obama started easing sanctions in 2011 after the military began loosening its grip, and he announced in 2016 the lifting many of the remaining sanctions. But in 2019, the Trump administration imposed targeted sanctions on four military commanders, including General Min Aung Hlaing, over human rights abuses against Rohingya Muslims and other minorities.

(Reporting by David Brunnstrom, Jonathan Landay, Patricia Zengerle, Matt Spetalnick, Simon Lewis, Humeyra Pamuk; Writing by David Brunnstrom and Matt Spetalnick; editing by Grant McCool)