The shooting happened at 2:50 p.m. in the 5600 block of International Boulevard. The victim was taken to a local hospital and is in critical condition, according to an Oakland police officer.
Police said a suspect is in custody in connection with the shooting.
A second shooting on Saturday injured one person, who was taken to a local hospital and is in stable condition, police said.
The shooting happened in the 1200 block of 78th avenue at 8:11 p.m., according to an Oakland police officer.
Police are seeking one suspect armed with firearm in connection with that shooting.