Officials said at least two gunmen were targeting a specific person and that they are still working to determine what touched off the shooting. It comes amid a surge in violence across the city.
Oakland police department
Federal monitoring began in the wake of a corruption and brutality scandal two decades ago. Critics say progress is extremely fragile and remain worried about true progress.
The investigation has led to criminal charges against seven officers in the Bay Area, and several officers were fired. "We remain focused on rebuilding the public trust," said Oakland's mayor.
The charges stem from allegations that officers in Oakland and several other San Francisco Bay Area law enforcement agencies sexually exploited a teenager.
Police departments around the county are under pressure to diversify. In Oakland, Calif., officials say police-community relations also might improve by increasing the number of cops who live there.