The national weather authority has placed multiple departments on high heat alert, while officials warn of worsening air quality in several regions, including Marseille, Paris and parts of southern France.

Villerouge La Cremade, France — Firefighters who helped contain France’s largest wildfire in decades were on high alert Friday because of forecasts of very high temperatures that could reignite the blaze in the south of the country, while fires prompted evacuations elsewhere in the Mediterranean region.

A heat wave gripped parts of Europe on Monday, sending temperatures up to 43 degrees Celsius (109.4 Fahrenheit) in southern France and increasing risks of wildfires in wine country, while Bulgaria suffered blazes along its southern borders as Hungary saw record-breaking weekend temperatures and fires caused evacuations in Turkey’s

In Aude, a region of vineyards and Mediterranean scrubland, hundreds of firefighters remain on hillsides, guarding the edges of a massive blaze that scorched 16,000 hectares last week. Officials state the flames are under control,

France is on high alert as an ongoing heat wave worsens air pollution in several regions, including Marseille, Paris, and parts of the south. This August 11, temperatures reached 109°F (43°C) in Charente and Aude,