A Smithville man was seriously injured in a rollover crash Sunday morning on Highway 70 at Dowelltown. The accident occurred at 12:45 a.m. According to Trooper Bobby Johnson of the Tennessee Highway Patrol, 36 year old Matthew Sullivan was traveling east on Highway 70 in a 2002 Ford 150 when he ran off the right side of the roadway while negotiating a curve. Sullivan’s truck then hit the end of a guard rail causing his vehicle to overturn. Sullivan was airlifted by helicopter to Tristar Skyline Medical Center.