The UK is sweltering under a heatwave and the extreme weather is already causing chaos, bringing thunderstorms and flooding to London and the southwest, hundreds of school closures and major disruption on the trains.

An extreme heat warning has been expanded as the UK braces for a heatwave that could send temperatures soaring to a record-breaking 38C

Experts warn of infrastructure breakdown and excess deaths as 40°C days could come as soon as next year for the UK

Swathes of the UK are to see record-breaking temperatures of up to 40C

Red weather warnings for extreme heat have been issued for parts of England and Wales