A 65-year-old man suffered life-threatening injuries after a pile-up on Highway 104.

It happened Monday morning near Westchester Mountain, Colchester County.

A truck towing a trailer was pulled over to the side of the road when a collision happened between two other vehicles, causing one to veer into the trailer.

The driver of the pulled-over truck was outside the vehicle, he was airlifted to hospital.

Four other people suffered non-life-threatening injuries.

RCMP say the investigation is ongoing.