FERGUSON, Mo. (AP) — St. Louis County police say a Ferguson officer was shot after encountering two suspects at a community center who fired at him during a foot chase.

County Police Chief Jon Belmar says the officer was shot in the arm and is expected to survive. Belmar did not identify the officer or give further details about his condition.

He says that the officer fired shots in return but that police have no indication that either suspect was shot.

A search was underway for the suspects early Sunday.

Belmar says he does not think the shooting was related to two separate protests that were going on Saturday night around the same time.

The city has been the scene of unrest since the Aug. 9 shooting of Michael Brown, an unarmed, black 18-year-old, by a white police officer.