ReutersA firefighter works at a tobacco factory in Kyiv that was damaged in a Russian drone attack. Officials said air defence systems downed at least 40 drones moving towards Kyiv. The predawn attacks came on the last Sunday of May when the capital celebrates Kyiv Day, the anniversary of its official founding 1,541 years ago. Preliminary information indicated the air raid was the largest drone attack on Kyiv since the start of Russia’s invasion in February 2022, Serhiy Popko, the head of Ukraine’s military administration said. “Today, the enemy decided to ‘congratulate’ the people of Kyiv on Kyiv Day with the help of their deadly UAVs [unmanned aerial vehicles],” Mr Popko said on the Telegram.