Ukraine's President Volodymyr Zelenskiy holds a news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine September 27, 2025. Ukrainian Presidential Press Service/Handout via REUTERS
(Reuters) -Ukrainian President Volodymyr Zelenskiy said on Friday that Russia deliberately waited for bad weather before staging a vast attack on Ukraine's energy system, adding the conditions reduced the efficiency of air defences by between 20% and 30%.
"The main assault was in four regions," Zelenskiy told reporters in Kyiv. "I believe that the weather conditions affected our capability to repel by something like 20-30%."
