Thousands of people could die in the coming heatwave, experts have warned, as the government triggered the first ever national emergency heat red alert with a record 40C (104F) temperature forecast for south-east England on Tuesday.
Health officials fear people living alone on upper floors of buildings are among those who could perish, as people did in Paris in 2003. Last year two lesser heat episodes caused about 1,600 excess deaths, according to official figures.
