A crash involving more than 20 vehicles has blocked Toronto's westbound Gardiner Expressway west of Strachan Avenue approaching Dufferin.

The crash just after 8:30 a.m. ET Friday has stalled westbound traffic on the Gardiner. Vehicles are backed up all the way to the Don Valley Parkway.

Eastbound traffic is crawling through the area as drivers slow down to take a look.

Toronto paramedics received calls to take two people to hospital with minor injuries, but their ambulance was having trouble reaching the scene.

More to come