At 02:33, Companies 33, 41, and R45 were sent to I81 SB MM50 for a Tractor Trailer Accident. Squad (5), Engine (3), and Traffic 33 responded. Chief 7 arrived with a truck on its side into the trees reporting the driver self extricated. Crews checked for fluid leaks and other hazards. The fire apparatus cleared leaving Fire Police from 33 and 3 remained on scene to assist HJ Towing.