A man and a woman have died and three other people were injured in a major crash on Highway 401 in Mississauga on Saturday, Ontario Provincial Police say.
The OPP have identified the two dead as Changding Zou, 62, of Markham, and Ting Zou, 35, of Scarborough.
A man, 38, also of Scarborough, suffered critical injuries, while two other people suffered minor to moderate injuries. The injured Scarborough man is currently listed in critical but stable condition in hospital.
The crash happened in the highway's eastbound lanes east of Winston Churchill Boulevard. Emergency crews were called to the area at 8:52 a.m.
Both eastbound and westbound lanes of Highway 401 have reopened in the area after they were closed for hours.
Const. Kevin Westhead, spokesperson for the OPP's Highway Safety Division, said the man and woman died at the scene. The critically injured man was taken to a trauma centre at Sunnybrook Health Sciences Centre.
Earlier, OPP said three people died in the crash, but at 11:30 a.m., that number was revised down to two.
Jay Szymanski, superintendent for Peel paramedics, said a fourth person was taken to hospital with "moderate" injuries. A fifth person was treated at the scene for minor injuries and released.
According to a preliminary investigation by the OPP, the incident began when two westbound vehicles, a Lexus SUV and a Ford F150 truck, collided and the truck crashed through the centre barrier, hitting a third vehicle, a Dodge Caravan minivan, in the eastbound lanes.
The man and woman who died and the man who was critically injured were all in the truck.
Two other vehicles struck debris on the highway.
Acting Sgt. Dan Hunter, spokesperson for the OPP's Highway Safety Division, said on Sunday that police believe the Lexus SUV swerved into the Ford F150, sending it vaulting over the centre barrier into the eastbound lanes.
OPP's Mississauga detachment is looking for witnesses and anyone with dashboard camera video to corroborate that belief. No charges have been laid.
Initially, police said there was a commercial tractor trailer involved, but later said that information was incorrect.
Debris was strewn over a wide area following the crash.
Officers from the OPP's collision reconstruction team finished their initial investigation on Saturday and the vehicles were removed.
Westhead said the Ontario Ministry of Transportation had to assess the damage to the centre barrier before the lanes were reopened.