Earlier, a fire had also blocked a highway running east from Paris and disrupted a high-speed train line to the south of France.
Travellers were facing delays of up to six hours for trains arriving at or leaving from Paris’s Gare de Lyon, French rail company SNCF said on Sunday evening.
Julien Marion, director general of civil security in France said on Friday that since the start of this year, wildfires have covered some 25,000 hectares of land in France.
The latest French heatwave has forced the temporary shutdown of three nuclear power stations to avoid the discharge of warm cooling water into overheated waterways.
Organisers of the Tour de France cycling race also shortened Sunday’s stage by 30km (19 miles) as temperatures neared 40C.
Climate change is driving up temperatures around the world, and Europe is the fastest warming continent, heating up twice as fast as the global average, according to the Copernicus climate service.
This is causing increased summer heatwaves, greater pressure on Europe’s water supply, and more intense wildfires.
The record-breaking temperatures across Europe this summer have led to major wildfires, most notably in Spain where at least 13 people were killed by Thursday’s wildfire in Almeria, one of the country’s deadliest ever.
And in the UK, a large wildfire in north Wales was declared a major incident by emergency services on Sunday, as firefighters tackled fires across England and Wales.
