U.K. Government Issues First-Ever Extreme Heat Warning

The excessive heat alert covers a large chunk of England and is set to last through Tuesday, when temperatures may reach 104 degrees Fahrenheit.

Millions of people in Britain stayed home or sought shade Monday during the country's first-ever extreme heat warning, as hot, dry weather that has scorched mainland Europe for the past week moved north, disrupting travel, health care and schools.

The red heat alert covers a big chunk of England and is due to last through Tuesday, when temperatures may reach 104 degrees Fahrenheit for the first time, posing a risk of serious illness and even death among healthy people, according to the Met Office, Britain's weather service.

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