FERGUSON, Mo. (AP) — A demonstration along West Florissant Avenue in Ferguson, Missouri, has been disrupted by gunfire. Shots rang out just after 11:15 p.m. Sunday. Protesters who had gathered in the street fled in multiple directions, hiding behind cars and taking cover in buildings. A police helicopter appeared overhead, shining a spotlight down on the street.

FERGUSON, Mo. (AP) — St. Louis County Police say an officer who came under heavy gunfire returned shots amid a protest in Ferguson. The department confirmed the shooting in a statement on Sunday night, less than an hour after shots rang out as hundreds had gathered to mark the anniversary of the death of Michael Brown.

FERGUSON, Mo. (AP) — St. Louis County Police Chief Jon Belmar says a man who opened fire on officers in Ferguson, Missouri, is in "critical, unstable" condition after being struck when the officers returned fire. Belmar said at a news conference early Monday morning that plainclothes officers had been tracking the man, who they believed was armed, during a protest marking the anniversary of the death of 18-year-old Michael Brown.

FERGUSON, Mo. (AP) — St. Louis County police are investigating a drive-by shooting that happened just blocks away from a march that marked a year since Michael Brown's death in Ferguson. The shooting happened about 1:40 p.m. Sunday, near the site where several hundred people were marching from Canfield Drive to a church. Canfield Drive is where Brown, who was black and unarmed, was killed by Ferguson officer Darren Wilson a year ago.

FERGUSON, Mo. (AP) — St. Louis County police say two people have been injured in what appears to have been a drive-by shooting near a monument to Michael, who was shot to death a year ago. Police spokesman Shawn McGuire says the 17-year-old and 19-year-old males told officers they were walking early Monday near the Canfield Apartments in Ferguson when an unknown man shot at them from a passing vehicle. McGuire says both are being treated at a hospital with non-life-threatening injuries.