A large wildfire has swept through the Fontainebleau forest, the ancient royal woodland about 60 kilometers southeast of Paris, burning more than 1,900 hectares and prompting evacuations in a region that seldom sees fires on this scale, France 24 reported. The blaze, which took hold on Sunday, has become one of the most striking symptoms of a hot, dry summer that has pushed serious wildfire risk far north of France's Mediterranean south.

A fire out of place

Fontainebleau is better known for its palace, its painters and its walking trails than for disaster, which is part of what has made this fire so alarming. Officials described the situation as exceptional, and France took the unusual step of sending water-bombing aircraft and helicopters normally deployed in the drier south to help hundreds of firefighters on the ground, Al Jazeera reported. Around 900 people were moved out of villages in the fire's path. Authorities reported no deaths or injuries, an outcome credited to early evacuations.

Disruption at the height of summer

Coming during one of France's busiest holiday weekends, the fire snarled movement across the region. A stretch of the A6, a main north-south motorway, was closed, and some rail services were interrupted, stranding or diverting travelers. The smoke and the scale of the response brought home a threat that residents of the Paris basin have rarely had to consider.

A suspicion of arson, and an investigation

What has drawn particular attention is how the fire may have begun. The interior minister, Laurent Nunez, said investigators had identified roughly ten separate points where the fire appeared to have started within about a one-kilometer radius, a pattern he said pointed to the possibility that it was set deliberately. "There were about ten spots where the fire started within a 1,000-metre radius, which suggests that it could have been set intentionally," he said, according to the South China Morning Post.

Two people have been detained in connection with the fire, the minister said, and the inquiry is continuing. No one has been charged, and it has not been established that either person was responsible; under French law they are presumed innocent unless a court finds otherwise. Officials cautioned that the cause remains under investigation.

A worsening fire season

The Fontainebleau blaze fits a broader and troubling pattern this year. France is in the grip of another summer heatwave, and by mid-July the area burned by wildfires across the country was already well above the level seen at the same point last year, according to figures cited by French media. Scientists have long warned that hotter, drier conditions are extending the reach of serious wildfires into regions, and seasons, once considered relatively safe. A major fire in a forest on the doorstep of the French capital is exactly the kind of event that warning describes. For now, crews remain deployed around Fontainebleau, working to secure the fire's edges and guard against flare-ups as the hot weather persists.