Montreal police are searching the freezing river just north of the city after a car fell through the ice near Highway 15.
Officers were called to the top of Notre-Dames-des-Anges St. in the Cartierville borough at about 12:20 A.M.
At the scene they spotted a car about 10 meters from shore. Seconds after the officers arrived, the car broke through the ice and sank to the bottom of the Rivière des Prairies.
For the moment it's not yet known if anyone was inside the vehicle at the time and how it ended up on the frozen river.
Police divers were called to the scene and a perimeter has been setup at the top of Notre-Dames-des-Anges St.