Police are investigating after two people were killed in separate collisions on Highway 401 in Mississauga Monday afternoon.

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Two people were killed in separate accidents on Highway 401 in Toronto Monday afternoon.

At about 3 p.m. a minivan struck a cement barrier in the eastbound lane and rolled before being hit by a pickup truck.

One person died on the way to hospital and four others were injured, including one critically.

Another accident occurred around 3:40 p.m. in the westbound lanes of Highway 401 near Dixie Road.

The three-vehicle crash killed the driver of an SUV.

Neither of the names of the deceased have been released.

Police continue to investigate.