A car slammed into a pole at Summerlea Road and Clark Boulevard, an industrial area near Airport Road and Highway 407, around 4 a.m., according to Peel Regional Police.
Investigators say another car was involved in the crash. One man is custody in connection to the collision.
The intersection of Summerlea Road and Clark Boulevard was blocked off for investigation, but has since been reopened.
Police say they're looking into the possibility that speed played a factor in the crash.