Police are looking for the occupants of a blue Audi after a shooting on Highway 401 on Tuesday.
It happened around 5 p.m. in the express lanes near Bayview Avenue.
OPP Sgt. Kerry Schmidt said there was a confrontation between the driver of a transport truck and the occupants of the Audi four-door sedan.
Someone in the Audi shot at the truck, hitting the window. No one was injured.