2 injured in fiery tractor-trailer crash on I-81 Updated Feb 14, 2021; According to the Pennsylvania State Police at Carlisle, two people were injured in the crash involving two tractor-trailers that occurred in the southbound lanes at mile marker 55 in Silver Spring Township around 2:23 a.m. Saturday. Police say the first tractor-trailer pulled from the right shoulder into the right lane, directly in the bath of the second tractor-trailer. The second truck tried to change lanes to avoid a collision but still hit the first truck and then the guide rail. Both trucks burst into flames, police say. The driver and a passenger of the second truck were taken to the hospital for treatment of moderate injuries.