MONTREAL (CBC) - Provincial police say 12 people suffered minor injuries in a collision involving a school bus, a truck and a car on a major Montreal highway.

The accident happened shortly before 4 p.m. on the westbound Highway 40 under the lAcadie overpass.

Most of the injured are children, said Const. Gregory Gomez del Prado.

Some of the injured have been taken to hospital, police said. The incident created serious traffic problems during the rush hour.