They were discovered by their father who raised the alarm, a source at the gendarmerie told AFP.
Dispatched to the site around 12:30 p.m., emergency services could only note the deaths, the firefighters said, confirming information from “Le Dauphiné Libéré”.
According to the regional daily, the man who discovered the bodies is the father of the youngest child.
Around sixty gendarmes and a helicopter are mobilized for the search, a source close to the investigation told AFP.
The three children had stab wounds, according to the same source.
The mother, who is depressed, is actively being sought, according to a gendarmerie source. She left a letter then headed for the mountains surrounding Taninges, according to Le Dauphiné Libération.
Around sixty gendarmes mobilized
Around sixty gendarmes and a helicopter are mobilized for the search, a source close to the investigation told AFP.
Gendarmes blocked access to a small isolated alley where the house where the tragedy allegedly took place is located, at the exit of the town, noted an AFP journalist.
In the village there were also gendarmes from the Surveillance and Intervention Platoon (PSIG).
Criminal identification specialists left the scene around 8 p.m., shortly before a funeral home removed the bodies of the three children, AFP noted.
The Bonneville prosecutor, Boris Duffau, who went to the site, could not immediately be reached.
Taninges is a commune of 3,500 inhabitants in the Giffre valley, approximately 50 km east of Geneva. Made up of a town center at an altitude of 600 m and several hamlets, it has a small ski resort at an altitude of 1,500 m.
Last week, two children aged one and four were found decapitated at their home in Sainte-Rose, Guadeloupe, and the mother, found wandering the streets of the town, was interned in a psychiatric hospital.
