Two people are in hospital after crashing on Highway 20 East in Beaconsfield on Tuesday night.
The Sûreté du Québec (SQ) received a 911 call around 8 p.m. about the incident.
According to the SQ, the driver, a 17-year-old male, was driving dangerously before crashing into a ditch.
Officers say they have reason to believe that alcohol may have played a role in the accident.
The two people were transported to hospital for minor injuries and the driver took a blood test to determine his blood-alcohol level.
A reconstructionist will analyze the scene to try and determine the cause.
The investigation is ongoing.