Peel Regional Police are saying it was a young man, who was struck and killed while riding his bike in Mississauga on Tuesday.
It happened near Dixie and Dundas, and police say the other vehicle involved is a transport truck.
The driver of the truck is still at the scene and is co-operating with police.
Police told NEWSTALK 1010, that the boy is 16 and is from Mississauga.
Images from the scene appear to show the trailer of the transport near a white tarp on the group, making it look as though the transport was turning a corner.
So far no charges have been laid.