Tear gas rises from the ground after having been fired upon protesters who are continuing to react to the shooting of Michael Brown, in Ferguson, Missouri August 17, 2014. Shots were fired and police shouted through bullhorns for protesters to disperse, witnesses said, as chaos erupted Sunday night in Ferguson, Missouri, which has been racked by protests since Brown, an unarmed black teenager, was shot by police last week. REUTERS/Lucas Jackson (UNITED STATES - Tags: CIVIL UNREST CRIME LAW TPX IMAGES OF THE DAY)