Outdoor working has been banned during the hottest parts of the day in more than half of Italy’s regions as an extreme heatwave that has smashed June temperature records in Spain and Portugal continues to grip large swathes of Europe.

The savage temperatures are believed to have claimed at least three lives, including that of a small boy who is thought to have died from heatstroke while in a car in Catalonia’s Tarragona province on Tuesday afternoon.

In Palermo, Sicily, a 53-year-old woman died on Monday after fainting while walking along a street. She had reportedly suffered from a heart condition.