A big rig slammed into a firetruck bringing traffic on Interstate 95 to a screeching halt for hours early Thursday and leaving five Philadelphia firefighters hurt. The tractor-trailer crossed lanes and slammed into the stopped firetruck in the southbound left-hand shoulder around 3 a.m. under the Chestnut Street overpass/Penn's Landing Tunnel in Old City. "It was chaotic out here," said NBC10 photo journalist Pete Kane who witnessed the wreck in his rear-view mirror. The wreck left five Philadelphia firefighters from Ladder 16 and the big rig driver with minor injuries. Doctors at Hahnemann Hospital treated the firefighters while the truck driver went to Jefferson Hospital – all in stable condition. The firefighters were responding to a minor crash when the big rig came across the lanes and slammed into the fire truck, said Kane. Despite the crash, firefighters could be seen running to help out other motorists.