A 16-year-old boy was killed early Tuesday morning when he was struck by a pickup truck on the Queen Elizabeth II Highway north of Calgary.

The accident happened near the CrossIron Mills mall at Balzac just after midnight.

It’s believed the teen was walking on the highway after having mechanical problems with his vehicle, which was found nearby, RCMP said.

He was struck by a northbound Ford F150 pickup travelling in the centre lane just north of the Highway 566 overpass.

Two employees from STARS Air Ambulance, who happened by, started emergency first aid, but the teen was pronounced dead at the scene.

"We have a young man whose car it appears broke down a short distance away and he was likely trying to walk home and for whatever reason found himself in the middle of the highway and was struck,” said Corp. Darrin Turnbull.

"At this point in time we are not anticipating any charges. It appears that this is one of those tragic situations where the driver of the vehicle did not have any chance to avoid the collision.”

Northbound lanes were closed until about 4 a.m. MT while police investigated.