RCMP in Canmore have charged a man after he allegedly hit a police vehicle on a closed highway where officers were investigating the death of a pedestrian.

On July 5 at about 11:30 p.m. MT, Canmore RCMP say they were approached by a driver of a tractor trailer who told them he thought he had hit a pedestrian on the Trans-Canada Highway near Canmore.

The driver wasn't able to tell them the exact location of the incident so RCMP and partner agencies started a search of the highway and were able to locate the man, who had been killed.

It appeared the 30-year-old Calgary man had been walking in the eastbound driving lane of the highway when he was hit.

During the investigation into the man's death, police were stopped in the right eastbound lane of the Trans-Canada Highway near Lac Des Arcs when an eastbound vehicle hit one of the police cars, which was in the closed lane with its emergency lights on.

Police charged a 37-year-old Calgary man with impaired operation of a motor vehicle, driving with a blood alcohol level above .08 and dangerous operation of a motor vehicle.

No one was injured in that crash.