ASPINWALL, Pa. (WPXI)— Six people were taken to the hospital after a crash involving a Port Authority bus in Aspinwall. Emergency responders said the crash happened on the on-ramp of the Highland Park Bridge from Freeport Road around 3 p.m. Saturday. Police, firefighters and medics all were called to the crash. PAT officials confirmed a PAT bus and another car collided. It’s unclear what caused the crash, but officials said six people were taken via ambulance to the hospital. Their conditions were not released.