SULLIVAN COUNTY, Tenn. -

Sullivan County sheriff's deputies are investigating an incident involving a school bus at that happened on Monday afternoon.

The Sullivan County Sheriff's office said school officials told deputies that the incident occurred as the bus driver was turning left from Cardinal Street to Newland Avenue.

As the driver turned onto Newland Avenue one of the wheels dropped off the road.

Three students were taken to a hospital as a precaution. 13 children from Ketron Elementary School were on the bus at the time of the accident.