A school bus carrying about 40 children ran off the road about 20 kilometres north of Cooma this morning on the Monaro Highway.
The accident occurred shortly before 9 am and police were swiftly on the scene.
The Cooma Coaches bus originated in Bombala and was taking the kids on a day trip to Canberra.
The bus driver was taken to hospital to be checked, and there are reports of minor injuries to one child.
No other vehicle was involved, and it's unclear as to the exact cause of the accident.
The bus was towed and the highway was closed for a period.
The operator, Cooma Coaches, is not providing comment at this stage.