Overnight, Moscow's aerial assaults have caused power cuts in large parts of the capital city, Kyiv.
Nine people were wounded while inhabitants in eastern districts were plunged into darkness and encountered interruptions to drinking water, as stated by municipal leaders.
At the same time, a seven-year-old child was killed in a separate assault in the southeastern region in the country's south-east, according to regional authorities.
Moscow has escalated attacks on energy facilities over the past few days, while the country's government has called for "concrete actions" from partner nations to exert influence on Russia.
"The necessity is not symbolic gestures but decisive action - from the US, European nations and the major economies - in providing defensive weapons and applying sanctions," he wrote in a social media post.
Officials stated that numerous aerial vehicles and more than 30 rockets struck energy facilities, characterizing such attacks as "strategic and deliberate" and against "everything that sustains normal life" as temperatures become colder.
Government representatives said Moscow was "conducting extensive attacks" and repair crews were striving to repair systems.
A wave of strikes hit power facilities and civilian homes in the capital.
Five out of the nine people wounded in the assaults on the city have been hospitalized, according to city authorities.
Area administrators said the metropolitan region came under heavy assaults overnight. A young boy died and three other people were injured.
The strikes follow nights of air raids in the region, parts of which remain under the control of Moscow's military.
All of Ukraine is in a state of readiness for hypersonic Kinzhal missile strikes, which are harder to detect.
Authorities told journalists that Moscow was purposely seeking to destroy the country's energy grid, with assaults already affecting gas facilities.
He said utility staff and authorities were bracing for additional strikes.