The Mediterranean Sea was up to 6 degrees Celsius warmer than usual for the time of year, hitting a record of as much as 30 C (86 F) in Spain's Balearic Sea as a heat dome trapped hot air above Europe, the country's Aemet weather forecaster said.

Italy banned outdoor work in some regions during the warmest hours, France shut schools and part of the Eiffel Tower and Spain confirmed its hottest June on record as a severe heatwave gripped Europe,

Weather warnings have been issued across Europe, as a heat dome pushes temperatures above 40C in the south of the continent.