Six people have been killed and 80 injured across Ukraine the previous night, when Russia attacked the country with more than 400 drones and nearly 40 missiles.
Russia said, aerial attack was in response to "terrorist acts by the Kyiv regime", claiming that military sites were targeted.
The attack came days after Ukrainian drone strikes targeted Russian strategic warplanes at four air bases deep inside the country.
Ukraine's security service SBU said, at least 40 Russian aircraft were struck during its Operation Spider's Web last Sunday.
Ukraine also says, 117 drones were used: they were first smuggled into Russia, then placed inside wooden cabins mounted on the back of lorries and concealed below remotely operated detachable roofs.