The Air Force added that it lost track of 44 decoy drones that Russia launched alongside the real attack drones.

Ukraine's air defences downed 52 of the 103 Russian drones launched overnight, the Ukrainian military said on Sunday.

Ukraine attacked a major fuel facility in western Russia overnight as part of a "massive" drone attack over the border, a Russian official has said, targeting the same site Kyiv said supplies the Russian military for the second time in little over a week.

A video posted on local Telegram news channel Astra, verified by The Associated Press, shows a drone flying into the upper floors of a high-rise building.

Kyiv on Saturday staged a major drone attack on the Russian city of Kazan, 1,000 kilometres (620 miles) from the frontier, the latest in a series of escalating aerial attacks in the nearly three-year conflict.

Russia launched a massive drone attack on Ukraine after assaulting Dnipro. The Ukrainian army reported that Russia fired 113 drones from multiple directions on the night of December 21. Ukraine claimed to have shot down 57 of these drones across 11 regions.

A daring drone attack on Kazan, Russia, has caused chaos, grounding flights at Kazan airport and locking residents in panic as several flights are suspended. This dramatic escalation has left the city in shock,

Russian forces have launched a large-scale attack on Ukraine using kamikaze drones, prompting an air-raid warning across the eastern half of the country. Source: Ukrainian Air Force on social media; online air-raid warning map Details: Groups of drones have been observed over Sumy Oblast,