People run from tear gas after police dispersed a crowd Sunday, Aug. 17, 2014, during a protest for Michael Brown, who was killed by a police officer last Saturday in Ferguson, Mo.

As night fell Sunday in Ferguson, another peaceful protest quickly deteriorated after marchers pushed toward one end of a street. Police attempted to push them back by firing tear gas and shouting over a bullhorn that the protest was no longer peaceful.

More information will be provided as it becomes available.