Overnight, Moscow's aerial assaults have caused blackouts in large parts of the capital city, Kyiv.
Nine people were wounded while inhabitants in eastern districts were left without electricity and dealt with interruptions to water systems, according to city officials.
At the same time, a minor was fatally injured in a different Russian drone strike in the southeastern region in the country's south-east, as reported by regional authorities.
Moscow has escalated attacks on energy facilities over the last fortnight, while Ukrainian leadership has requested "concrete actions" from partner nations to increase pressure on Moscow.
"What is required is not window dressing but firm measures - from the America, Europe and the major economies - in supplying protection systems and applying penalties," he wrote in a public message.
He said that 450 drones and several dozen projectiles struck Ukraine's energy infrastructure, describing such assaults as "strategic and deliberate" and against "everything that sustains normal life" as temperatures become colder.
Energy officials said Moscow was "conducting extensive attacks" and repair crews were striving to fix the damage.
A barrage of missiles hit electrical systems and apartment buildings in the capital.
Multiple people injured in the strikes on the city have been hospitalized, according to city authorities.
Local officials said the urban area experienced intense attacks during nighttime hours. A young boy died and multiple civilians were hurt.
The assaults follow periods of aerial attacks in the region, parts of which remain under the control of Moscow's military.
The whole nation is under warning for advanced weapon attacks, which are more difficult to spot.
National leaders told reporters that Moscow was purposely seeking to demolish the electrical infrastructure, with strikes already affecting gas facilities.
Officials stated technical personnel and government agencies were preparing for more assaults.
