The fires in Spain this year have burned 158,000 hectares or 610 square miles, according to the European Union’s European Forest Fire Information System. That is an area roughly as big as metropolitan London.

Authorities warned of "unfavourable conditions" to tackle flames that have already killed seven people and burned an area the size of London.

Across the country, wildfires have already killed seven people and burned an area the size of London. Wildfires have burned more than 157,000 hectares in Spain so far this year, almost double the annual average,