The Ontario Provincial Police have identified the two men killed in a weekend crash that resulted when a Mazda SUV was driving the wrong way on Highway 401.

Police began getting calls shortly after 2:30 a.m. Saturday, regarding a vehicle that was driving the wrong way in the eastbound lanes of Highway 401 near Ajax, Ont.

The first reports indicated that a Volkswagen was struck on the highway near Harwood Avenue, in Ajax, by the vehicle going the wrong way.

Within minutes, police were told that two other vehicles — a Mazda 3 and a Chevrolet Cruze — had been involved in collisions with the wrong-way vehicle, east of Brock Road in Pickering, Ont.

Police say the Mazda 3 was hit head-on and the Chevrolet Cruze was involved in a collision afterward.

The driver of the Mazda 3, which was going the right way, has been identified as 33-year-old Alexei Febles-Madrazo of nearby Oshawa, Ont.

The man behind the wheel of the Mazda Tribute, which was going the wrong way, also died. He has been identified as 25-year-old Rahaman Hussain of Scarborough.

The investigation continues and police say they are still unclear why the collision occurred. Anyone with information is asked to contact Const. Everoll Harris at 905-668-3388.