A US Capitol Police officer has been shot at the Capitol Visitor Centre complex, and a suspect was taken into custody, Capitol officials and police said.
The event unfolded with Congress on recess and politicians back in their constituencies.
It occurred in the visitors’ centre of the sprawling Capitol complex.
Staffers, reporters and others were told to “shelter in place” and not allowed to leave their offices.
The White House and the Capitol complex were put on lockdown.
The police officer who was shot was not believed to be seriously injured.
The US Congress and White House are on lockdown after reports of a shooting on Capitol Hill.
There are reports of at least one police officer shot and the shooter is in custody.