During the night, Moscow's missile and drone strikes have caused blackouts in large parts of Ukraine's capital, Kyiv.
A number of civilians were hurt while inhabitants in eastern districts were plunged into darkness and encountered interruptions to water systems, as stated by local authorities.
Meanwhile, a young boy was fatally injured in a different Russian drone strike in the Zaporizhzhia region in the southern area, according to local officials.
Moscow has increased assaults on power infrastructure over recent weeks, while the country's government has requested "concrete actions" from allies to exert influence on Moscow.
"What is required is not symbolic gestures but decisive action - from the America, European nations and the G7 - in delivering defensive weapons and enforcing restrictions," mentioned in a public message.
He said that hundreds of unmanned aircraft and more than 30 projectiles struck the country's power systems, characterizing such strikes as "cynical and calculated" and against "critical infrastructure" as temperatures become colder.
Government representatives said Russia was "launching a major assault" and maintenance teams were working to restore power.
A series of attacks struck electrical systems and civilian homes in Kyiv.
Several of the people hurt in the assaults on the city have been transported for medical care, as confirmed by city authorities.
Area administrators said the urban area experienced intense attacks throughout the evening. A young boy lost their life and multiple civilians were injured.
The strikes come after evenings of air raids in the region, parts of which remain under the control of Russian forces.
All of Ukraine is under warning for sophisticated projectile assaults, which are harder to spot.
Government officials told reporters that Russia was intentionally trying to damage the country's energy grid, with strikes already affecting gas facilities.
Authorities confirmed energy workers and officials were bracing for more assaults.
