Pittsburgh Police responded to a 9-1-1 call of shots heard on the 1600 block of Westchester Street around 8:40 p.m.
Before arriving on scene, Zone 6 officers received descriptions of a vehicle seen leaving the area.
Zone 1 officers located the dark colored sedan a short time later in Manchester.
When Zone 1 officers pulled the vehicle over at the intersection of Brighton Road and Western Avenue, the driver notified them of the wounded passenger.
Officers applied tourniquets to the victim until medics arrived. He was transported to a local hospital in stable condition with gunshot wounds to the leg.
The investigation is ongoing.