Russia thwarted a Ukrainian attack on Russian regions involving at least 24 drones and two missiles, the Russian defence ministry said on Sunday.
The ministry said that Ukrainian drones were shot down over Moscow, Tula, Kaluga, Smolensk and Bryansk.
It also said Russian air defences shot down two Ukrainian S-200 surface-to-air missiles that had been adapted to hit land targets.
The missiles were shot down over the Sea of Azov, the ministry said.
One person was injured in Tula when an intercepted drone hit an apartment building, the region's governor, Alexei Dyumin, said.
«A mass drone attack was attempted overnight,» said Moscow Mayor Sergei Sobyanin, adding that Ukrainian drones were shot down in several areas of the Moscow region.
The Kommersant newspaper said that flights were delayed or cancelled at Moscow's main airports because of the drone attack.
Ukraine said on Saturday that Kyiv had been hit by Russia's largest drone attack of the war.
A Russian-installed official in the Russian-controlled Ukrainian region of Donetsk said that Ukrainian forces had struck the energy system, leaving some people without heat or power.