Spain is deploying 500 more soldiers to battle fast-spreading wildfires, as a brutal heatwave and strong winds leave nearly the entire country at extreme risk. Fires have already scorched land equal to the size of London and killed seven people.

A scorching heatwave is fuelling dozens of wildfires across parts of southern Europe, forcing thousands of people from their homes and pushing temperatures above 40C (104F). Red heat alerts have been issued in parts of Italy, France, Spain, Portugal and the Balkans, warning of significant risks to health.