An 18-wheeler full of wood chips lies on its side in the parking lot of an Exxon gas station on U.S. 61 North this morning after the truck fell over as the driver, Jeremy Grey of Vicksburg, attempted to drive into the parking lot. Grey said the truck, owned by Forest Products Transports of Yazoo City, becomes top-heavy when it is full, and a slight incline into the parking area was all that was needed for its weight to shift. Forest Products was sending in a cleanup crew. No injuries were reported.