Suspect in custody following reports of vehicle ramming into officers

The US Capitol is locked. An announcement through the PA system urged everyone to stay inside and away from windows.

CNN’s Lauren Fox reports that she saw ambulances and a helicopter outside the building. One person was seen on a stretcher.

DC Fire spokesman Vito Maggiolo says they are responding to a shooting on the Capitol’s north barricade and there are indications that they will be transporting patients.