Pakistan, July 4 -- France, the Netherlands and Belgium have recorded 3,700 excess deaths during the June heatwave that sent temperatures soaring across Europe, with authorities warning that the numbers are preliminary and could rise. Experts have said the heatwave, which lasted from about June 20-28, was the worst recorded in Europe, causing disruption to power generation, damaging infrastructure and overwhelming healthcare systems. The extreme heat was almost certainly driven by climate change, scientists said. There were 2,025 excess deaths recorded in France during the heatwave, with a particular increase in deaths among people aged over 45, French Health Minister Stephanie Rist told local television on Friday. Deaths at home rose 91%...