A runaway trailer smashed into an ambulance, killing the driver, on Highway 2 in northwestern Alberta.
Mounties say a truck hauling empty propane tanks was heading east near McLennan when its trailer broke away around 11 a.m. Monday.
Police say the trailer travelled across the centre line and smashed into an Albert Health Services ambulance.
RCMP say the driver of the ambulance died at the scene, and an unknown number of other people in the ambulance had non life-threatening injuries.
Police are investigating.
