Just before noon on Canada Day, emergency crews responded to the crash at Ring Road 23 and Thorah Concession Road, about 110 kilometers north of Toronto. Police say the victims are all adults — one woman and two men. The woman and the child were in one vehicle while the three dead were in the other. Durham Police say the collision investigation unit is at the scene and will provide more details later. This fatal crash killed 3 adults (1 female, 2 males) in one vehicle and seriously injured an adult female and a child in a second vehicle. The crash investigation unit is on the scene and we will provide more details later. https://t.co/vJbh00rTr2 —@DRPS