Vicksburg Warren School District resource officer Dewayne Sims, from left, bus driver John Walker, Vicksburg Patrolman Burt Ryan and Kansas City Southern Railway inspector Rodrick Hughes look over the site of a school bus accident this morning. They said a bus hit a railroad crossing arm at Phelan’s Crossing, at Court Street and Baldwin Ferry Road, at about 7:30. No students were on the bus, and no injuries were reported, Sims and Ryan said.