An attempt to ram the White House gates ended with shots fired, U.S. senators put under lockdown in the Capitol, and a female suspect dead, sources told ABC News.

A police officer was also reported shot, sources said.

Secret Service pursued a suspect from the White House to the Capitol. One agent in a marked Secret Service vehichle was injured when the car in which he was chasing the suspect was upended by an electronic barricade by the Capitol as it rose out of the ground.

Lawmakers reported hearing three pops that sounded like gunfire.

“We heard pops that sounded like shots,” said Sen. Bob Casey, D-Pa.

Source: ABC News – ABC News: Attempt to Ram White House Gate Ends With Female Suspect Dead