Toronto police are looking for witnesses after an 11-year-old boy riding his bike was struck by a pickup driver Tuesday afternoon near Northland Ave. and Weston Rd.

The boy was taken to hospital with life-threatening injuries.

A 53-year-old man driving a Chevrolet Silverado was stopped at a red light on eastbound Northland Ave. just after 4 p.m., police said in a news release Wednesday.

When the light turned green, police said the driver began to make a left turn onto northbound Weston Rd.

Police said he struck the boy, who was riding his bicycle from the east side to the west side of Weston, on the north pedestrian crosswalk of Northland Ave.

Police are asking anyone who may have information about or security or dash camera footage of the incident to contact them at 416-808-1900 or Crime Stoppers anonymously at 416-222-8477.