PITTSBURGH — (WPXI) – A man has died after a vehicle and a motorcycle collided in Pittsburgh’s Carrick neighborhood Monday evening. Police, EMS and fire units responded to the collision on Saw Mill Run Boulevard shortly before 7:30 p.m. The male motorcycle rider was found on the road unconscious and not breathing, police said. An off-duty nurse was in the area at the time of the crash, and performed CPR on the man until medics arrived on scene. The motorcyclist was taken to the hospital in critical condition, and was later pronounced deceased. Police said the driver of the vehicle stayed on scene and cooperated with the investigation. No other injuries were reported. The investigation is ongoing.