It was around 7 p.m. on Friday evening, when a deafening noise broke the calm that characterizes the road to the Col des Prés, in Thoiry (Savoie).
A small ULM-type tourist plane stalled for some reason before hitting the ground.
The two people who were on board the craft died in the accident.
The plane ended its fall in the Bauges massif, at an altitude of about 1,100 meters, before igniting, said firefighters and the prefecture of Savoie.
"The two occupants of the aircraft, which took off from Annecy, died in the explosion that followed the crash," said the latter in a statement, without specifying the identity of the victims.
"Witnesses saw the aircraft crash before catching fire and exploding", tell our colleagues from the liberated Dauphiné.
Alerted by two residents, the rescuers were unable to do anything, finding the burnt plane and the bodies of its two "charred" passengers.
Investigators from the BGTA (air transport gendarmerie brigade) went to the site to determine the circumstances of the accident, added the prefecture.