The Washington, D.C., police chief says at least five weapons have been recovered and at least 13 people have been arrested so far in pro-Trump protests.   

The mostly maskless crowd stormed the Capitol earlier Wednesday as lawmakers were meeting to certify President-elect Joe Biden's win. One person was shot; their condition is unknown. 

Police Chief Robert Contee called the attack a riot.  

As darkness began to set in, law enforcement officials were working their way toward the protesters, using percussion grenades to try to clear the area around the Capitol. Big clouds of tear gas were visible.

Police were in full riot gear. They moved down the West steps, clashing with demonstrators. 

Mayor Muriel Bowser earlier declared a 6 p.m. curfew.