Toronto police say a man is in critical condition after falling off the back of a moving truck early this morning.
Investigators say the man jumped on the back of a white cube van in the city's east end just after 2 a.m.
They say he then fell off and struck his head, and was found unconscious.
Police say they are looking for the driver and van, as well as anyone who may have witnessed the incident.
Officers say they believe the driver may not be aware of what happened.
The Canadian Press