CALLAWAY COUNTY, Mo. — A St. Louis driver was seriously injured in a Callaway County accident Monday morning. According to the Missouri State Highway Patrol, Saymon N. Harris, 22,  was driving westbound on Interstate 70 around 10:25 a.m., when he failed to navigate a curve and traveled off the right side of the roadway. His vehicle crossed the separator and struck the ground before crossing Old U.S. 40 Highway, traveling off the north side of U.S. 40 Highway before striking an embankment. Harris was transported via Callaway County EMS to University Hospital in serious condition.