Three people have been injured, one critically, after a single-vehicle collision in Milton early Sunday.
Halton Police said officers responded to a call around 2:19 a.m. about a car colliding with a tree on Britannia Road, west of Highway 25.
The driver, a 22-year-old male from Mississauga and the front-seat passenger, a 17 year-old female from Milton, sustained minor injuries.
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The backseat passenger, a 17-year-old female also from Milton, suffered critical injuries and was transported to a trauma centre, according to police.
The Collision Reconstruction Unit has taken over the scene.
It was determined that the four-door Mazda was travelling eastbound on Britannia when it left the roadway, drove into a ditch and struck several trees before coming to a stop back on the road.
The cause of the collision is still under investigation.