RCMP are investigating what caused a fatal crash just west of Calgary on Tuesday evening.
It happened on Highway 8 just west of Lott Creek Drive at about 10 p.m.
Calgary police said a vehicle left the road, slamming into a pole.
Two men were in the vehicle at the time.
Cochrane RCMP said the passenger, a 60-year-old man from Calgary, was pronounced dead at the scene. RCMP will not be releasing his name.
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The driver, a 48-year-old Calgary man, was flown to hospital by STARS Air Ambulance in serious condition.
The collision caused the temporary closure of both lanes of Highway 8.
Anyone who may have witnessed the collision is asked to contact the Cochrane RCMP detachment at 403-851-8000 or to contact Crime Stoppers.