Police are investigating the circumstances after a woman was seriously injured in the westbound lanes of the Gardiner Expressway.
Toronto police say the woman either fell or jumped out of a moving vehicle on the expressway near Dufferin Street just after 2 a.m. Sunday.
She was taken to the hospital with serious injuries.
Investigators say the driver of the vehicle has since been located.
Police provided no further details about the relationship between the two or what may have led up to the incident.