Five people were feared dead after two army helicopters collided on the shores of lake Carcès in southern France, about 50 km northwest of the coastal town of Saint-Tropez, BBC reported. It is not yet clear what caused the collision.

The Var region prefecture said the two choppers were Army aviation service helicopters based at a nearby school in Cannet-des-Maure, AFP reported. Twenty soldiers along with the local police are involved in the search and rescue operations for one person.