People in more than 90 cities observed Thursday's National Moment of Silence. The vigils come in the wake of the shooting death of an 18-year-old man by a police officer in Ferguson, Missouri, and the death of a New York City man caused by a police officer's chokehold.
In New York, about a thousand people marched peacefully in Manhattan's Union Square. In Nevada, about 40 people gathered outside the federal courthouse in Reno.
Rallies were also scheduled for the Gateway Arch in St. Louis, near where Michael Brown was shot, and in Detroit and Los Angeles. People were asked to wear a red ribbon, cloth or bandanna in a show of solidarity.