Hundreds of demonstrators gathered in Washington, D.C., chanting "no justice, no peace," "kneel with us" and "we need justice for George Floyd," just before curfew.

The U.S. capital implemented a curfew starting from 7 p.m. local time (2300 GMT) on Monday through 6 a.m. on Tuesday. Mayor Muriel Bowser voiced her support for the protests but aims to stop the repeat of looting and property destruction inflicted on her city the previous two nights. 

Evening curfews were ordered in dozens of cities in the U.S. following a week of demonstrations over the death of 46-year-old George Floyd in Minneapolis police custody. 

Protests have been largely peaceful during the day, but violence and pillage have erupted after dark.