The large-scale attack comes days after Trump says Putin had "very strongly" promised response to Ukraine "Spider web" attack.

The Kremlin said on Friday the Ukraine war was "existential" for Russia, after it launched a wave of retaliatory drone and missile strikes that killed at least four people.

Russia hit Ukraine with a barrage of missiles and drones days after Kyiv's planned drone attack in Russian territory. The attack comes a day after President Trump voiced frustration on the stalled peace talks between the countries.