Authorities say more than 30 people have been arrested in Ferguson, where crowds have looted and burned stores, vandalized vehicles and taunted police after a vigil for an unarmed black man who was killed by police.
St. Louis County police spokesman Brian Schellman says two officers suffered minor injuries in the unrest. He says there are no reports of civilians being hurt.
The tensions erupted after a candlelight vigil for 18-year-old Michael Brown, who police say was shot multiple times Saturday in a scuffle with an officer. An investigation of the shooting is continuing.