Wildfires have killed two people in Spain and two others have died in France because of a heatwave that has gripped Europe and forced the closure of a nuclear reactor at a Swiss power plant.With scorching temperatures again on Wednesday,

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.

Paris was on red alert for high temperatures on Tuesday, with the top of the Eiffel Tower shut, polluting traffic banned and speed restrictions in place as a searing heatwave gripped Europe.Mediterranean countries from the Iberian peninsula through France and Italy to the Balkans and Greece have been sweltering in a heatwave for several days,