A blaze in southern France forced the closure of the Marseille airport, and weather agencies issued warnings for other parts of Europe where temperatures were expected to climb this week.

A heat wave covered much of Europe on Monday, with record-hot first day of play at Wimbledon and forest fires in Turkey and France.

A marine heat wave in the Mediterranean is combining with a powerful heat dome to cause Europe to swelter under a brutal early summer heat wave.

Four people died in Spain, two in France and two in Italy as an early summer heat wave continues to grip much of Europe this week.

Some parts of Western Europe were starting to cool off as the extreme heat that has gripped the continent moved east.

The heat was so expansive that mountaintops, including the French Alps, that are usually frozen from snowpack saw record temperatures. Heat records were set for June in Spain and Portugal.

Europe’s heat wave is set to peak over the coming days, with a blast of Saharan air triggering red alerts from France to the Swiss Alps.

A 10-day heat wave that ended on July 2 pushed temperatures above 40C (104F) across parts of Western Europe. According to scientists from Imperial College London and the London School of Hygiene and Tropical Medicine, climate change intensified the heat by as much as 4C (39F) in 12 major cities, including Barcelona, Madrid, Milan, and London.

Wildfires were raging in Spain and France on Tuesday after a dayslong heat wave parched landscapes in the region and turned woodlands into tinderboxes.

A record-breaking heat wave in Europe has forced the shutdown of at least three nuclear reactors due to rising river temperatures used for cooling. One reactor at France’s Golfech Nuclear Power Plant was shut down after forecasts showed the Garonne River could exceed 28°C (82°F).

Europe is currently experiencing its first major heatwave of the summer, with cities including Paris, Rome, The Hague, and Barcelona facing temperatures well above the seasonal average. Following a notably dry spring,