The contact with passengers on board the plane was lost shortly after the aircraft took off, and hours later, when the plane was reported overdue, Royal Canadian Air Force plane was dispatched to look for the missing aircraft and searchers located it about 100 km (62 miles) west of Calgary, the police said.
The search confirmed that five passengers and one pilot on board the plane had not survived, the police added in a statement.
The cause of the crash remains under investigation, the police said.