A runway at London’s Luton Airport was shut down for over an hour Monday after extreme heat caused a section of the tarmac to buckle.

“High surface temperatures caused a small section [of the runway] to lift,” the airport said in a statement.

Engineers onsite repaired the tarmac, and full service was restored by 6:15 local time Monday evening.

The international airport wasn’t the only one affected by the heat — a Royal Air Force base, RAF Brize Norton, temporarily shut down its runway as well due to high surface temperatures.

The temperature in London Monday reached 100.6 degrees Fahrenheit, just shy of the 101.7 degree record set in 2019.

A heatwave is currently gripping the island nation, which is unaccustomed to such heat and where most buildings are not air conditioned.

The heat even led Parliament to temporarily relax its dress code, where lawmakers were told they cold forego jackets and ties for the week.

Temperatures in the south of Britain are predicted to get as high as 104 degrees on Tuesday, part of a heatwave sweeping Europe this week.

“We hoped we wouldn’t get to this situation but for the first time ever we are forecasting greater than 40C [104F] in the UK,” said Dr Nikos Christidis, a science with the Met Office, the UK’s meteorological service.

“Climate change has already influenced the likelihood of temperature extremes in the UK. The chances of seeing 40C days in the UK could be as much as 10 times more likely in the current climate than under a natural climate unaffected by human influence,” he said.

Presently, Spain and Portugal are battling wildfires, and the European Union dispatched a firefighting plane to Slovenia over the weekend.

“We continue of course to monitor the situation during this unprecedented heatwave and will continue to mobilize support as needed,” EU spokesperson Balazs Ujvari said.

With Post wires