Officials from the Transportation Safety Board are expected to arrive in St. Brieux, Sask. to investigate Saturday's mid-air collision between two planes.
The collision killed all five people on board the two planes: three men, a woman and a boy. There were no survivors.
One of the planes was a Piper PA-28, which was flying from Calgary to St. Brieux.
Two men and a young male were onboard. On Sunday afternoon, family members identified three of the victims, all from southern Alberta.
They include pilot Denny Loree along with Eric Donovan and his 11-year-old son Wade, CTV Calgary reported.
The other aircraft was a Lake Buccaneer amphibious plane, which was headed from Regina to La Ronge. A man and a woman were on that plane, but they have not been identified.
RCMP officers are working on securing the area and recovering the bodies.
Wreckage from one plane was found submerged in shallow water, and wreckage from the other plane was found in a nearby wooded area, said the RCMP.
Earlier, Cpl. Rob King described to CTV News how officers discovered the crash involved more than one plane.
"While our members were on scene searching the area trying to find debris, they found debris from the second flight," he said. "We received notice from flight services here in Regina that there had been two planes in the area and both were off radar."
Loree's family released a statement about the tragedy on Sunday.
"We are devastated by this tragedy and our hearts go out to all of the family, and friends of the deceased individuals. My father was an excellent pilot who was loved and admired by the community and all of his peers."
