A crash involving more than 20 vehicles blocked Toronto's westbound Gardiner Expressway near Dufferin Avenue for much of the morning commute.

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The pileup happened in the westbound lanes of Toronto's Gardiner Expressway just west of Strachan Avenue near Dufferin. (Google)

The crash happened just after 8:30 a.m. ET Friday and stalled westbound traffic on the Gardiner. Vehicles were backed up all the way to the Don Valley Parkway. The backup was cleared a few hours later.

Toronto paramedics received calls to take two people to hospital with minor injuries.