Nine Roane County students were treated for injuries described as minor following an accident Wednesday afternoon involving their school bus. The bus was headed south on Mahoney Road near Oliver Springs at around 3:45 pm when the Tennessee Highway Patrol says that the right side tires dropped off the pavement as it went around a curve, turned over on to its side and slid down an embankment. County-owned Bus Number 61 was carrying 22 students from Oliver Springs Middle and High Schools and Dyllis Elementary School. Nine students suffered injuries ranging from cuts and bruises to a possibly separated shoulder. The bus driver, 66-year-old Sam Davis of Kingston, was wearing his seat belt and was not injured. No citations were issued and none are expected, according to the Tennessee Highway Patrol. The exact cause of the accident remains under investigation. All of the injured students were taken to Methodist Medical Center for treatment of their injuries. No other vehicles were involved.