Casey Clark is taken to an ambulance by Vicksburg Fire Department paramedics after a wreck on South Frontage Road Monday. Clark was the passenger in a Mercury Grand Marquis driven by Monica Clark, no age available, 923 Buck St., which was struck by an unknown vehicle from behind, Vicksburg Patrolman Kevin Rushing said. Rushing said the wreck possibly will be recorded as a hit-and-run. Monica Clark was not injured. Casey Clark was taken to River Region Medical Center, where he was treated and released, a hospital spokesman said this morning.