Police have evacuated the US Capitol and the visitors' center.
Capitol police provided no explanation for the move, simply saying it was an emergency. In a message to congressional offices, police said, "an evacuation has been ordered for US Capitol Visitor Center due to an audible alarm. Remain calm and move in a safe manner to the exits." Hundreds of tourists were forced out of the building onto the East Lawn between the Capitol and the Library of Congress. Fink Arthur, a 28-year-old tourist from Freiborg, Germany, said he was with a tour guide and initially was told it was probably just a test but then the guide led them out of the building.