Gunman wounds four US officers
A 38-year-old gunman who opened fire in a Detroit police station came through the front door into an open, unprotected lobby.
The gunman wounded four officers on Sunday afternoon at Detroit's sixth precinct before he was shot and killed.
The officers' injuries are not considered life-threatening.
Police Chief Ralph Godbee described the shooting as a scene of "utter chaos and pandemonium."
Unlike a number of suburban police departments, Detroit precincts do not have metal detectors and the front desks are not fitted with Plexiglass-type shields, but they do have security cameras.
Chief Godbee said the police department will have to reassess security at each of its facilities.