The heatwave has led to forest fires and droughts in parts of Europe popular with British tourists.
The Foreign and Commonwealth Office (FCO) has issued alerts about blazes in Spain, Portugal, France and Greece. Meanwhile, parts of Italy are suffering a drought that could lead to water shortages.
The UK Government is not advising people against travelling to the countries. But it is reminding holidaymakers to take care, precautions and to be prepared for disruption.
