The number of deaths from the heat in France has reached one thousand, mainly affecting those 65 years and older, with most deaths occurring in the region of Ile-de-France. The heat has also impacted nuclear reactors in Hungary, Switzerland, and France, leading to reduced electricity production and increased electricity prices across Europe.

The claim that most deaths occurred in homes in the region of Ile-de-France is supported by recent evidence. Reports indicate a significant rise in deaths at home due to the heatwave, with over 1,200 deaths recorded on a single day and a large proportion among those 65 years and older. This corroborates the claim that most deaths were concentrated in the region among the elderly population.