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.

Investigators believe the family's SUV was stopped behind a semi-truck when a second semi hit it from behind.

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