France has hit its highest ever recorded temperature – 44.3C (111.7F) – amid a heatwave in Europe which is thought to have claimed lives.
The new record was measured in the southern town of Carpentras. The previous record was 44.1C during a heatwave in 2003 that killed thousands.
Schools have been shut and officials are checking on vulnerable people, Mayor Étienne Baudu said.
France’s weather service has issued an unprecedented red alert for four areas.
Those are all in the south, but most of the country remains on orange alert, the second highest level.
The weather service said the new record – measured at 13:48 local time (11:48 GMT) – remained provisional as temperatures could climb higher still.
Swathes of the continent are experiencing extreme heat. Germany, France, Poland and the Czech Republic have all recorded their highest-ever June temperatures.
In Spain firefighters are battling Catalonia’s worst wildfires in 20 years. Eight provinces are on red alert while temperatures are expected to rise above 42C in many areas.
The Italian ministry of health has reported emergency levels of heat in 16 cities.
First loss of life
Several people are believed to have lost their lives as a result of the extreme temperatures, including two who died from suspected heatstroke in Spain.
One, a 17-year-old farm worker in Córdoba, went into convulsions after cooling down in the farm swimming pool, while an 80-year-old man died on a street in the northern city of Valladolid.
In the UK, police warned people of the dangers of cooling off in rivers and lakes after a 12-year-old girl drowned in the River Irwell in Greater Manchester.
Why is it getting so hot?
Meteorologists say hot air drawn in from northern Africa is responsible, caused by high pressure over central Europe and a storm stalling over the Atlantic.
In southern France, the areas of Gard, Vaucluse, Hérault and Bouches-du-Rhône are expected to see temperatures between 42C and 45C on Friday.
French authorities have stepped up restrictions on water use to combat the heatwave’s effects, while 4,000 schools are now closed or have special measures in place to welcome pupils.
In a TV interview, Health Minister Agnès Buzyn said she was concerned about the increase in calls to emergency service numbers as a result of the heatwave.
She called on members of the public to avoid “risky behaviour” like leaving children in cars or jogging outside in the middle of the day.
Is climate change to blame?
Linking a single event to global warming is complicated.
While extreme weather events like heatwaves occur naturally, experts say these will happen more often because of climate change.
Records going back to the late 19th Century show that the average temperature of the Earth’s surface has increased by about one degree since industrialisation.
A climatology institute in Potsdam, Germany, says Europe’s five hottest summers since 1500 have all been in the 21st Century.
Scientists are concerned that rapid warming linked to use of fossil fuels has serious implications for the stability of the planet’s climate.