During the night, Russian missile and drone strikes have caused power cuts in extensive areas of the capital city, Kyiv.
Nine people were injured while inhabitants in eastern districts were plunged into darkness and encountered disruption to water supplies, according to municipal leaders.
Meanwhile, a minor was killed in a distinct aerial attack in the Zaporizhzhia region in the country's south-east, according to local officials.
Russian forces has increased strikes on power infrastructure over the last fortnight, while Ukrainian leadership has requested "concrete actions" from international partners to exert influence on Moscow.
"What's needed is not superficial actions but decisive action - from the US, European nations and the major economies - in providing protection systems and implementing penalties," mentioned in a public message.
Authorities reported that 450 drones and over thirty missiles struck energy facilities, describing such strikes as "cynical and calculated" and against "critical infrastructure" as temperatures become colder.
Energy officials said Russia was "conducting extensive attacks" and repair crews were striving to repair systems.
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.
Local officials said the city experienced heavy assaults throughout the evening. A young boy was killed and multiple civilians were injured.
The attacks come after evenings of bombing campaigns in the territory, sections of which are currently controlled by invading troops.
All of Ukraine is on alert for hypersonic Kinzhal missile strikes, which are tougher to detect.
Government officials told reporters that Moscow was intentionally trying to destroy the national power system, with strikes already affecting gas facilities.
He said utility staff and officials were preparing for more assaults.
