Kerwin Road in Dunrobin was shut down for most of Wednesday after an 18-year-old man struck a tree early that morning, dying shortly afterwards.

An investigation took place between Berry Side Road and Mowbray Street and is now continuing away from the scene. Police say alcohol doesn't appear to be a factor in the crash, but the cause under scrutiny.

The man had "life-threatening" head injuries when firefighters arrived before 8 a.m. to take the man out of his heavily damaged car, police add. He lost all vital signs when he was extricated from the vehicle, and died shortly afterwards.

His name will not be released until his family is notified.

Anyone with information should call Ottawa police at 613-236-1222 ext. 2481, or Crime Stoppers at 613-233-8477 (TIPS).