An active shooter situation is unfolding near Constitution Avenue on Capitol Hill in Washington, D.C. on Thursday afternoon. Capitol Police are instructing people inside the Hart Senate Office Building and other nearby buildings to shelter in place.
The FBI, and U.S. Secret Service agents are among the law enforcement agencies assisting Capitol Police in what is being described as an active shooter situation. All people inside buildings on Capitol Hill have been ordered to lock all doors and windows.
Approximately 10-12 gunshots have been fired, according to witnesses in the area that heard the gunshots.
The Capitol Police and other law enforcement officials are expected to hold a press conference this afternoon.
An Intel source told CNN that the incident began with a car chase about a block away from the White House and ended near the Hart Senate Office Building. When the driver, believed to be a woman exited the black vehicle, gunfire was exchanged and the woman was hit. One police officer was injured in the crash. The injured officer has been airlifted by U.S. Park Police to a nearby hospital.
The FBI and U.S. Secret Service are housed in the United States Department of Homeland Security.
Check back for updates as details become available.