Capitol Police said two officers were injured when a vehicle rammed into them near the U.S. Capitol early Friday afternoon.
The suspect was shot by police, according to two officials familiar with the investigation.
Police said the two officers and suspect were taken to the hospital.
All buildings on the U.S. Capitol complex were put on lockdown, and officials said Attorney General Merrick Garland has been briefed on the incident and is monitoring the investigation.
The FBI said in a statement its Washington Field Office is responding and providing support to Capitol Police.
The blocks surrounding the Capitol building were once again surrounded by law enforcement as the area was secured. Just before 2 p.m., two dozen National Guardsmen formed a line across Independence Avenue, wearing helmets and body armor and carrying plastic shields.
Vehicles and walkers were blocked from going east on Constitution Avenue NE by barricades and armed National Guardsmen, along with D.C. police patrol cars.
The U.S. Capitol Police said on Twitter that the incident occurred at an access point along Constitution Avenue.
When the incident occurred, police alerted staff members: “Due to an external security threat located All U.S. Capitol Campus Buildings , no entry or exit is permitted at this time,” the alert reads. “You may move throughout the building(s) but stay away from exterior windows and doors. If you are outside, seek cover.”
Jessica Contrera and Devlin Barrett contributed to this report.
Headshot of Peter Hermann Peter Hermann Peter Hermann covers crime for The Washington Post. He previously worked for the Baltimore Sun for 22 years, covering a Baltimore suburb and then the Baltimore Police Department.Follow Headshot of Aaron Davis Aaron Davis Aaron Davis is an investigative reporter who has covered local, state and federal government, as well as the aviation industry and law enforcement. Davis shared in winning the Pulitzer Prize for Investigative Reporting in 2018.Follow