(CNN) — Five people were killed Saturday when two small planes collided in the air northeast of Saskatoon, Canada, officials said.

Both planes involved were single-engine aircraft.

One was en route to La Ronge from Regina with a man and woman aboard, the Royal Canadian Mounted Police said.

The other was traveling to St. Brieux, Saskatchewan, where the crash occurred, from Calgary. Two men and a male juvenile were aboard, police said.

The Transportation Safety Board of Canada is investigating the crash.