Hamilton Police are investigating three fatal weekend crashes.
A 69-year-old St. George man died when his pick up truck struck a tree in Flamborough on Friday.
A 22-year-old Hamilton man died after he was thrown from the back of a pickup truck on the Linc on Saturday night.
Police say he was in the back of the truck trying to hold a mattress.
An 87-year-old woman died yesterday morning when she was hit by a vehicle while crossing Governors Road.
No charges have been laid in any of the collisions.
Police are asking witnesses to come forward.