Durham Regional Police Service (DRPS), yesterday had a difficult day with two separate collisions in Pickering and Ajax, which claimed the lives of two people respectively.
In an update on the Ajax crash, the police said an adult female has been pronounced deceased.
It said an adult male is in hospital with life-threatening injuries.
In the Pickering collision too, an adult female was pronounced dead while an adult male was in a Toronto trauma centre.
Police said the intersection of Kingston Road West and Elizabeth Street was closed for the collision investigation involving three vehicles.
It advised motorists to consider alternate routes, promising updates to follow.