MONTREAL -- A man in his 60s has died after the pickup truck he was driving collided head-on with a school bus in Rawdon on Monday, provincial police said.

The pickup truck collided around 4 p.m. with a school bus carrying 20-or-so teenagers on Route 337, according to the Surete du Quebec. Three of the teens on the bus suffered minor injuries and were transported to hospital, the police force added.

First responders rushed the driver of the pickup to the hospital where he was pronounced dead.

Authorities dispatched another bus to the scene to pick up the remaining teenagers.

It is unclear why the vehicles collided. SQ officers are investigating.

As of 5 p.m., Route 337 was closed in the area. Rawdon is northeast of Montreal.  

The Canadian Press contributed to this report.