Around 8:15 p.m. Pittsburgh Police officers from Zone 6 responded to reports of a quad vehicle that had crashed in an alley behind the 1200 block of Faust Street.
Officers located a male victim on the ground several yards behind his overturned vehicle. He was not wearing a helmet.
Paramedics transported him in critical condition to the hospital.
The Collision Investigation Unit responded to investigate and speak with witnesses on scene.
The investigation is ongoing.