The Hamilton Police Service is continuing to investigate a fatal crash on the eastbound Lincoln Alexander Parkway (Linc) early Sunday morning.
Officer say just after 6 a.m., a 2010 Acura was exiting the Linc at Upper James and failed to negotiate the first curve.
The car left the road and the driver died.
She has only been identified as an 18-year-old from Flamborough.
The daily email you need for
Hamilton's top news stories.
Investigators are awaiting the results of a post-mortem scheduled for Monday.
The collision reconstruction unit is asking anyone who may have information or dashcam video to contact Det. Const. Henrick Vandercraats of the collision reconstruction unit at (905) 546-4753.