Russian authorities early on Tuesday accused Kyiv of yet another attack on Moscow and its surroundings with drones, one of which hit a building in the capital that was damaged by a drone just days ago in a similar attack early on Sunday. It wasn’t clear why the same building was hit twice in a row. In both incidents, the Russian military said the drones that hit the skyscraper were jammed before crashing.

Russian officials have claimed that the intensified attacks on the capital region reflect failures in Ukraine’s counteroffensive, while Ukrainian President Volodymyr Zelensky said over the weekend that “the war is gradually coming back to Russian territory,” but stopped short of taking responsibility of the attacks. The repeated drone strikes underscore Moscow’s vulnerability as Russia’s war in Ukraine drags into its 18th month.