One person was killed and another suffered serious injuries after being hit by a 16-seat tour bus west of Calgary on Wednesday.
Alberta RCMP said it happened at Castle Mountain lookout on Highway 1A in Banff National Park.
According to Covenant Health, an ambulance was sent to the scene from Banff at about 9:52 a.m.
STARS Air Ambulance was then sent to the scene at 9:58 a.m.
STAR-1 (Calgary) has been dispatched for a scene call emergency in the Banff, AB area.— STARS Ambulance (@STARSambulance) September 21, 2016
RCMP say a 53-year-old woman was killed while a 55-year-old man was injured.
Investigators say it appears that the passengers had gotten off the bus, and the man and woman were standing in front of it when it rolled forward, hitting them before going over an embankment and ended up in the Bow River.
No one else was injured.