Overnight, Russian aerial assaults have led to power cuts in large parts of Ukraine's capital, Kyiv.
A number of civilians were hurt while local people in eastern districts were plunged into darkness and faced interruptions to water supplies, per reports from municipal leaders.
Meanwhile, a minor was killed in a separate Russian drone strike in the Zaporizhzhia area in the country's south-east, according to local officials.
Russian forces has intensified attacks on electrical systems over the last fortnight, while officials has demanded "concrete actions" from allies to exert influence on Moscow.
"What's needed is not symbolic gestures but strong steps - from the US, the EU and the Group of Seven - in supplying protection systems and implementing penalties," was stated in a online statement.
He said that 450 drones and over thirty rockets attacked Ukraine's energy infrastructure, describing such attacks as "strategic and deliberate" and against "critical infrastructure" as temperatures become colder.
Government representatives said Russia was "inflicting a massive strike" and repair crews were striving to fix the damage.
A wave of strikes struck electrical systems and civilian homes in Kyiv.
Five out of the nine people hurt in the attacks on the city have been hospitalized, according to local officials.
Area administrators said the metropolitan region came under intense attacks during nighttime hours. A minor lost their life and three other people were wounded.
The attacks follow evenings of air raids in the territory, parts of which remain under the control of invading troops.
All of Ukraine is under warning for sophisticated projectile assaults, which are tougher to detect.
National leaders told the media that Moscow was deliberately attempting to damage the national power system, with attacks already disrupting gas facilities.
He said utility staff and government agencies were preparing for additional strikes.