Provincial Police confirm another deadly crash on Highway Six in Flamborough.
The driver of an SUV has been killed, after slamming his GMC Yukon into the back of a tandem dump truck just before 1 o'clock on Wednesday afternoon.
The impact caused the Yukon to flip onto its roof.
It happened between Clappison's Corners and the 403 at the King Road overpass.
The man has not been identified, but is believed to be in his late thirties or early forties, and the O-P-P's Graham Williamson says they are still trying to determine the cause after talking to a number of witnesses.
Only weather has been ruled out as a potential factor.
The southbound lanes of Highway Six will be closed at the scene until this evening.