Oakland police are investigating a shooting Monday night that wounded a man.
Police say the shooting happened on 37th Street near Martin Luther King Jr. Way around 9 p.m.
Officers found shell casings from "various calibers," suggesting there might have been multiple shooters.
The man, who is from Pittsburg, arrived at a hospital to be treated for injuries. He is in critical condition, police said.
There was no information about who shot him or what could have motivated the violence.