No one was injured after a tractor-trailer hauling a load of seedless watermelon caught fire in the south bound lanes of I-77 Wednesday morning, temporarily closing both southbound lanes of I-77 while first responders worked the scene. “Upon arrival to the scene, the cab of the truck was fully involved and the fire had spread into the trailer”, said Chuck White, Assistant Chief of the East River Volunteer Fire Department. The East River Volunteer Fire Department was assisted by the Oakvale and Green Valley-Glenwood Fire Departments on the blaze.