Russia said on Sunday that it had thwarted a major Ukrainian drone attack with at least 20 drones shot down over its regions, including Moscow.
The defence ministry said Ukrainian drones were shot down over regions that also included Tula, Kaluga and Bryansk.
One person was injured in Tula when an intercepted drone hit an apartment building, according to the region's governor Alexei Dyumin.
"A mass drone attack was attempted overnight," Moscow Mayor Sergei Sobyanin added.
The Kommersant newspaper said that flights were delayed or cancelled at Moscow's main airports due to the drone attack.
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