During the night, Moscow's aerial assaults have caused power cuts in large parts of the capital city, Kyiv.
A number of civilians were wounded while inhabitants in the city's east were experienced blackouts and encountered disruption to water systems, according to municipal leaders.
Meanwhile, a seven-year-old child was fatally injured in a separate aerial attack in the Zaporizhzhia region in the country's south-east, according to regional authorities.
Russian forces has intensified assaults on energy facilities over the past few days, while the country's government has called for "substantial measures" from partner nations to increase pressure on Moscow.
"What is required is not superficial actions but strong steps - from the US, the EU and the Group of Seven - in supplying air defence systems and enforcing sanctions," he wrote in a public message.
Authorities reported that numerous aerial vehicles and more than 30 rockets struck the country's power systems, characterizing such strikes as "strategic and deliberate" and against "essential services" as the weather cools.
Government representatives said Russia was "launching a major assault" and maintenance teams were laboring to restore power.
A barrage of missiles damaged electrical systems and civilian homes in Kyiv.
Five out of the nine people hurt in the assaults on the capital have been transported for medical care, as confirmed by municipal representatives.
Regional authorities said the metropolitan region endured intense attacks during nighttime hours. A young boy died and several individuals were hurt.
The assaults come after periods of aerial attacks in the region, sections of which remain under the control of Moscow's military.
The entire country is under warning for hypersonic Kinzhal missile strikes, which are tougher to spot.
National leaders told journalists that Moscow was intentionally trying to damage the national power system, with assaults already impacting energy systems.
He said energy workers and authorities were preparing for more assaults.
