UK declares national emergency in heat wave(1/4)

A woman uses a fan to keep cool in London, UK, July 18, 2022. UK issued a red warning for extreme heat, the highest-level alert. (Photo/Agencies)

A member of the Queen's Guard receives water during the hot weather, outside Buckingham Palace in London, Britain, July 18, 2022. UK issued a red warning for extreme heat, the highest-level alert. (Photo/Agencies)

A man cools off by soaking their feet in a fountain in London during the heat wave, London, UK, July 18, 2022. UK issued a red warning for extreme heat, the highest-level alert. (Photo/Agencies)

Fans on sale at a store in London, UK, July 18, 2022. UK issued a red warning for extreme heat, the highest-level alert. (Photo/Agencies)