A Ukrainian drone struck an oil storage depot in western Russia on Friday, causing a massive blaze, officials said, as Kyiv’s forces extended their attacks on Russian soil ahead of the war’s two-year anniversary.

Four oil reservoirs with a total capacity of 6,000 cubic meters (1.6 million gallons) were set on fire after the drone reached Klintsy, a city of some 70,000 people located about 60 km from the Ukrainian border, according to the local governor.