During the night, Russian missile and drone strikes have led to power cuts in large parts of the capital city, the Ukrainian capital.
A number of civilians were wounded while local people in eastern districts were left without electricity and faced interruptions to water systems, per reports from municipal leaders.
Meanwhile, a minor was fatally injured in a separate Russian drone strike in the Zaporizhzhia region in the southeastern part, as reported by area administrators.
Moscow has escalated attacks on electrical systems over the last fortnight, while Ukrainian leadership has requested "real steps" from allies to exert influence on Russia.
"What's needed is not symbolic gestures but decisive action - from the United States, European nations and the Group of Seven - in providing air defence systems and implementing sanctions," he wrote in a public message.
Authorities reported that numerous aerial vehicles and several dozen missiles struck Ukraine's energy infrastructure, describing such attacks as "strategic and deliberate" and against "critical infrastructure" as the weather cools.
Energy officials said Russia was "inflicting a massive strike" and maintenance teams were striving to repair systems.
A wave of strikes damaged power facilities and apartment buildings in the capital.
Multiple people hurt in the assaults on the city have been transported for medical care, according to local officials.
Area administrators said the urban area endured significant strikes during nighttime hours. A minor died and several individuals were hurt.
The attacks succeed nights of bombing campaigns in the area, portions of which are occupied by invading troops.
All of Ukraine is under warning for hypersonic Kinzhal missile strikes, which are tougher to spot.
National leaders told the media that Russia was purposely seeking to damage the country's energy grid, with strikes already affecting gas facilities.
Authorities confirmed utility staff and government agencies were anticipating more assaults.