(Litchfield)--A 66 year old Highland man has been cited in Monday afternoon's school bus accident near Litchfield. According to State Police, Henry Jaeger has been cited with failure to reduce speed to avoid an accident.

Jaeger was southbound on Interstate 55 when he struck a tractor trailer driven by 54 year old Gerald Rees of Arkansas. The school bus had forty one people on the bus at the time of the accident, with thirty three of those being students.

Reportedly the bus was heading back to Grantfork Upper Elementary School in Highland following a field trip to the state capitol.

Eleven students were injured in the accident, with one student being taken to a St. Louis hospital for treatment of serious injuries. Jaeger was taken to Memorial Medical Center for treatment of serious injuries.

Interstate 55 was shut down for several hours as a result of the accident, which remains under investigation.