VALLEYVIEW, Alta. - Four children were sent to hospital with minor injuries Friday after a school bus clipped a road grader in northwestern Alberta.

Police said the bus from the Northern Gateway School Division then hit the ditch along the rural road near Valleyview. All the children were released from hospital.

Valleyview RCMP Staff Sgt. Stew Patterson said the rest of the students on the bus were fine and were taken to their respective schools.