The Ontario Provincial Police have identified the driver killed Wednesday when a transport truck wheel smashed into the SUV he was driving northbound on Highway 400.

Paul Philip Koenderman, 69, of Burlington died after a wheel became detached from a truck and smashed through the windshield of the GMC Yukon near King Road. 

The OPP say the incident happened at around 9:30 a.m. when a truck travelling southbound about 40 kilometres north of Toronto lost a set of wheels, one of which caromed into the northbound lanes and slammed into the Yukon. 

Koenderman was pulled from the badly damaged vehicle and transported via air ambulance to hospital, where he later died. 

Police say it's not immediately clear how the wheels separated from the vehicle and the incident remains under investigation.