The Ontario Provincial Police has charged a Thornhill woman after a crash Saturday on Myers Road in Lakeshore.
Police tried unsuccessfully to stop a vehicle travelling at a high rate of speed in the Belle River area just 15 minutes before the crash.
Just before 11 p.m., the same vehicle left the road, hit a guardrail, and went into a ditch near South Middle Road.
The driver was not hurt.
A 40-year-old woman is charged with careless driving and failing to stop.