Punishing temperatures were forecast to reach 40 degrees Celsius (104 degrees Fahrenheit) in Paris and to stay unusually high in Belgium and the Netherlands. In contrast, temperatures were falling in Portugal, where no red heat warnings were issued.

Europe sizzled in its first major heat wave of the summer on Tuesday, as Barcelona recorded its hottest June in over a century and the summit

France and the rest of Europe remains in the grip of the first major heatwave this summer with health warnings in effect on Tuesday, even as conditions begin to improve in some parts of the region. Punishing temperatures were forecast to reach 40C in Paris and to stay unusually high in Belgium and the Netherlands.