Media reports say former Alberta premier Jim Prentice is one of the four people who died overnight in a plane crash in British Columbia.
The Cessna Citation business jet went down minutes after taking off from the Kelowna airport on a flight to Springbank airport near Calgary.
The former Harper government cabinet minister quit politics in May of last year after the Alberta NDP swept the Progressive Conservatives from power.
The Mounties are securing the crash site until a team of investigators from the Transportation Safety Board arrives on scene.