Overnight, Moscow's aerial assaults have resulted in electricity outages in extensive areas of the capital city, Kyiv.
A number of civilians were hurt while local people in the city's east were left without electricity and faced disruption to water supplies, according to local authorities.
At the same time, a young boy was killed in a different aerial attack in the Zaporizhzhia region in the country's south-east, based on information from local officials.
Moscow has increased assaults on energy facilities over the last fortnight, while Ukrainian leadership has called for "substantial measures" from international partners to apply pressure on Moscow.
"What is required is not window dressing but strong steps - from the US, Europe and the Group of Seven - in delivering defensive weapons and implementing restrictions," was stated in a public message.
He said that numerous aerial vehicles and more than 30 missiles attacked energy facilities, describing such attacks as "premeditated" and against "critical infrastructure" as the weather cools.
Energy officials said Russia was "inflicting a massive strike" and repair crews were working to restore power.
A wave of strikes damaged power facilities and residential structures in Kyiv.
Five out of the nine people wounded in the attacks on the city have been hospitalized, according to municipal representatives.
Regional authorities said the urban area experienced intense attacks throughout the evening. A minor was killed and three other people were wounded.
The assaults follow periods of air raids in the area, sections of which are occupied by invading troops.
All of Ukraine is under warning for hypersonic Kinzhal missile strikes, which are more difficult to spot.
National leaders told reporters that Moscow was purposely seeking to demolish the national power system, with strikes already impacting fuel infrastructure.
Officials stated technical personnel and government agencies were bracing for more assaults.
