Alberta RCMP are stressing safety in construction zones and on secondary highways after recent crashes on Highway 9, where a new video of a semi trying to pass in a construction zone is sparking more concern.

It's been one week since a B.C. family suffered a tragic accident near Oyen, Alta. The fatal collision leaves them grieving the loss of their 10-year-old son as they recover from their own life-altering injuries.

RCMP, EMS and firefighters responded to the collision between two tractor-trailers and a vehicle on Highway 9 on Wednesday.