The Ukrainian military said the strike on the refinery in Russia's Nizhny Novgorod region had caused a large fire. Reuters was able to verify a video posted on social media that showed orange flames lighting up the night sky in the city of Kstovo,

Ukraine's air defences shot down 59 of 102 Russian drones, the air force said. It said that 37 drones were "lost", referring to the use of electronic warfare to redirect them. Russian drones caused damage in the northeastern Sumy region,