The summit was already closed today, for the safety of visitors and staff, the attraction's website said, adding that it will also be closed all day tomorrow. Access to the first and second floors remains open, but operators are urging visitors without pre-booked tickets to postpone their visit, writes Brussels-based Politico.

Temperatures in Paris are expected to reach 36 degrees Celsius this week, with parts of southern France reaching as high as 40 degrees. The French government has issued heatwave warnings for 84 areas.

The Eiffel Tower, completed in 1889 for the World's Fair in Paris, was initially intended as a temporary structure, but it quickly became a national symbol and is now considered one of the most visited monuments in the world.

The weather also affected other European landmarks, such as the Atomium in Brussels, where opening hours were shortened due to the heat.