WESTMORELAND COUNTY — (WPXI) – A tractor-trailer caught fire after crashing into a bridge pillar on the Pennsylvania Turnpike. Emergency crews were called to the 69.9-mile marker in Westmoreland County on the westbound side of the road at around 1:27 p.m. Before catching fire, first responders said the truck ran off the side of the road and hit a pillar supporting Eisaman Road. which sat on top of the turnpike. A passerby helped remove the driver from the vehicle. The driver was later taken to a hospital. Firefighters said the truck was hauling mail, which was damaged during the fire. Firefighters from Hempfield Township, New Stanton, East Huntingdon and Youngwood responded to the scene until about 3:30 p.m.