An 18-year old man died early Saturday morning in a single vehicle rollover in Lethbridge.

Police say the car, which was being driven by an 18-year old woman, left the road on 13th Street North near the entrance to Pavan Park, rolled over and skidded on its roof just before 3 a.m.

The driver sustained serious injures and was airlifted to hospital in Calgary.

An 18-year old male passenger in the vehicle died at the scene.

Three other people in the car were taken to hospital in Lethbridge where they were treated and released.

Lethbridge police believe the dead man was not wearing a seat belt and that speed and alcohol were factors in the crash, which is still under investigation.