Officers were called to the shooting scene at about 8:45 p.m. Sunday at the intersection of Anaheim Street and Roswell Avenue, Long Beach Police Lt. Dominick Scaccia said.
"Officers arrived on scene and located a male adult victim suffering from a gunshot wound to the upper body," Scaccia said.
Officers rendered aid to the victim until paramedics arrived and took him to a hospital, where he was pronounced dead, the lieutenant said.
A motive for the shooting was not known, Scaccia said.
Homicide detectives are investigating.