During the night, Moscow's missile and drone strikes have caused power cuts in extensive areas of Ukraine's capital, Kyiv.
Nine people were wounded while local people in the city's east were plunged into darkness and faced problems to water supplies, according to city officials.
Meanwhile, a minor was killed in a distinct Russian drone strike in the Zaporizhzhia area in the southern area, as reported by regional authorities.
Russian forces has intensified assaults on electrical systems over the last fortnight, while Ukrainian leadership has called for "real steps" from international partners to increase pressure on Moscow.
"What is required is not superficial actions but firm measures - from the US, European nations and the G7 - in delivering air defence systems and applying sanctions," he wrote in a social media post.
He said that 450 drones and over thirty missiles targeted the country's power systems, describing such strikes as "strategic and deliberate" and against "essential services" as temperatures become colder.
Government representatives said Russia was "inflicting a massive strike" and maintenance teams were striving to fix the damage.
A wave of strikes damaged power facilities and residential structures in the capital.
Multiple people hurt in the strikes on the capital have been hospitalized, as confirmed by municipal representatives.
Area administrators said the urban area experienced significant strikes overnight. A young boy died and three other people were hurt.
The assaults follow nights of bombing campaigns in the area, sections of which remain under the control of Russian forces.
The entire country is in a state of readiness for advanced weapon attacks, which are tougher to detect.
Authorities told journalists that Moscow was intentionally trying to destroy the electrical infrastructure, with strikes already impacting gas facilities.
Authorities confirmed utility staff and authorities were bracing for more assaults.
