Fontainebleau Fire: Arson Suspected, 900 Evacuated
A severe forest fire of exceptional magnitude swept through the Fontainebleau forest, approximately 60 kilometers south of Paris, forcing the evacuation of around 900 people from several communes. French authorities suspect the blaze may have been deliberately set, with investigators identifying approximately ten separate ignition points along a one-kilometer stretch of the A6 motorway.
Unprecedented Blaze
The fire broke out on the afternoon of Sunday, July 12, near the A6 motorway in the vicinity of Noisy-sur-l’École. Fueled by drought conditions and strong winds reaching 50 km/h, the fire doubled in size overnight from 400 to 800 hectares — roughly 5 percent of the entire Fontainebleau forest, which spans 25,000 hectares.
According to VRT NWS, the fire developed “in a very worrying way,” as Franck Maillard of the fire brigade told BFMTV, noting the affected area doubled in a single night.
Arson Investigation Underway
Interior Minister Laurent Nuñez, who visited the command post at Achères-la-Forêt on Monday morning, confirmed that investigators found approximately ten separate ignition points within a 1,000-meter perimeter along the A6 motorway. “This suggests it could be of voluntary origin,” Nuñez stated. The public prosecutor of Fontainebleau has opened an investigation into the cause.
Nuñez also revealed that 44 arson-related arrests have been made across France since the start of summer, and that 9 out of 10 fires nationwide are human-caused, whether through negligence or deliberate action.
Unprecedented Aerial Response
For the first time in the history of the Île-de-France region, aerial firefighting resources were deployed to combat the blaze. Two Canadair CL-415 water-bomber aircraft, scooping water from the Seine River, two Dash aircraft spreading retardant, and three water-bomber helicopters were mobilized. Paul Laurain, spokesperson for the Seine-et-Marne fire service, confirmed that the use of water bombers in the Fontainebleau forest was unprecedented.
By midday Monday, more than 500 firefighters were on site, with reinforcements arriving from departments including Haute-Savoie, Isère, and Loire. Lieutenant-Colonel Francis Comas, spokesperson for the National Federation of French Firefighters, warned that it could take “several days or even several weeks” to fully control the fire.
Evacuations and Disruption
Approximately 900 people were evacuated from the communes of Achères-la-Forêt, Arbonne-la-Forêt, Le Vaudoué, and Noisy-sur-l’École. The mayor of Achères-la-Forêt confirmed that 400 people from that village alone were relocated to shelters in neighboring towns. In Le Vaudoué, residents living on streets bordering the forest were also evacuated. A 103-year-old resident reportedly sought reassurance at an evacuation center.
The A6 motorway remained closed on a 20-kilometer stretch between Soisy-sur-École and Nemours, disrupting travel along the major route to southern France. High-speed rail services on the LGV Sud-Est line between Paris and Lyon were also temporarily suspended after fire-damaged cables, though SNCF Réseau completed repairs by Monday morning and service returned to normal.
No injuries or damage to homes have been reported, as the fire primarily affected forestland.
National Context: A Devastating Fire Season
The Fontainebleau fire comes amid an exceptionally severe wildfire season across France. Interior Minister Nuñez confirmed that 32,000 hectares have burned in France so far in 2026 — exceeding the entire 2025 season. On Sunday alone, there were 250 fire starts across the country.
A simultaneous heatwave, with 37 departments under red vigilance and 39 under orange, has created extreme fire conditions. Other significant fires on July 12-13 included blazes in Loire-Atlantique (80 hectares, 220 evacuated), Lot-et-Garonne (193 hectares, 200 evacuated), and Cap Fréhel in Côtes-d’Armor (127 campers evacuated).
President Emmanuel Macron expressed solidarity with affected residents on social media, writing: “The Fontainebleau forest is struck by a fire of exceptional magnitude. To the residents of Seine-et-Marne, I want to express our solidarity. All means are mobilized.”
What to Watch For
Firefighters continue to battle the blaze, with the primary objective being to “fix” the fire — preventing further spread before full extinguishment can begin. The arson investigation will seek to identify suspects and determine motivation. Meanwhile, the ongoing heatwave and drought conditions across southern Europe raise concerns about further fire outbreaks in the weeks ahead.
The ecological impact on the Fontainebleau forest, a protected state-managed area that attracts millions of visitors annually for hiking and bouldering, will become clearer once the fire is fully contained.