Russian President Vladimir Putin has responded to Tuesday's drone attacks on the capital Moscow, accusing Ukraine of trying to frighten Russians, APA reports citing BBC.
He said civilians were targeted, but air defences dealt satisfactorily with the threat.
The defence ministry said at least eight drones caused minor damage, but Kyiv has denied responsibility.
This is the first time the city has been targeted by multiple drones since Russia's invasion of Ukraine.
Moscow Mayor Sergei Sobyanin said no-one was seriously injured. Several drones fell on an exclusive western suburb where senior officials live.
Speaking on Russian TV, Mr Putin said the attack had been a response to what he described as a Russian attack on Ukraine's military intelligence HQ in recent days. The BBC is unable to independently verify whether any such attack took place.
"In response to this, the Kyiv regime chose a different path - the path of attempts to intimidate Russia, to intimidate Russia's citizens, and of air strikes against residential buildings," he said.
"This is obviously a sign of terrorist activity."
"They are provoking us into responding in kind," he added.
Russia's foreign ministry said Western support for Kyiv was "pushing the Ukrainian leadership towards ever more reckless criminal deeds including acts of terrorism".
But the US state department repeated Washington's position that it did not support attacks inside Russia, adding that it was still gathering information on the drone strikes.
The strikes on Moscow followed an overnight drone attack on the Ukrainian capital, Kyiv in which at least one person was reported killed.
Ukrainian officials said falling debris set buildings on fire as Ukraine's air defences intercepted more than 20 drones.