Washington’s main railway terminal, Union Station, was evacuated on Wednesday.
“We got a bomb threat,” an unidentified police officer said, as he urged people to leave Union Station in downtown Washington near the U.S. Capitol Building.
Panicked people began running out of the station, which is a hub for railway, commuter train and subway service to the U.S. capital city, shortly after 5 p.m. EDT (2100 GMT)a witness said.
A bomb-sniffing dog walked among people standing outside the massive building.
Police cars, a fire truck, an ambulance and a police canine vehicle converged on the railway station.