Peel police are investigating a serious single-motorcycle crash in Mississauga.
The crash happened just after 9:30 p.m. on Vanderbilt Road, in the Winston Churchill and Derry Road area.
Police say the motorcycle crashed into a stop sign.
The driver, a male under 20, was taken to hospital with serious injuries and remains in critical condition.
Police say it is too early to determine what caused the accident but investigators will be looking into if speed or alcohol were factors.
Vanderbilt Road will be shut down for several hours while officers investigate.