Health warnings remained in effect in several European countries. The worst was felt in southern Europe while punishing temperatures were forecast to reach 40 degrees Celsius (104 degrees Fahrenheit).

Europe sizzled in its first major heat wave of the summer on Tuesday, as Barcelona recorded its hottest June in over a century and the summit of Paris’ iconic Eiffel Tower was closed to visitors. Health warnings remained in effect in several countries.

A marine heat wave in the Mediterranean is combining with a powerful heat dome to cause Europe to swelter under a brutal early summer heat wave.