During the night, Russian missile and drone strikes have caused power cuts in extensive areas of the capital city, Kyiv.
A number of civilians were wounded while residents in the city's east were experienced blackouts and dealt with interruptions to drinking water, as stated by city officials.
Meanwhile, a seven-year-old child was fatally injured in a different assault in the Zaporizhzhia region in the southeastern part, according to area administrators.
Russian forces has increased assaults on power infrastructure 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 America, European nations and the Group of Seven - in supplying defensive weapons and enforcing penalties," he wrote in a public message.
Officials stated that hundreds of unmanned aircraft and several dozen rockets struck Ukraine's energy infrastructure, labeling such attacks as "premeditated" and against "everything that sustains normal life" as the weather cools.
Government representatives said Russia was "inflicting a massive strike" and technical staff were striving to restore power.
A series of attacks damaged power facilities and residential structures in Kyiv.
Several of the people injured in the strikes on the capital have been hospitalized, according to municipal representatives.
Local officials said the city endured significant strikes throughout the evening. A minor died and multiple civilians were injured.
The assaults come after nights of bombing campaigns in the area, sections of which are currently controlled by Russian forces.
The entire country is under warning for sophisticated projectile assaults, which are more difficult to spot.
Authorities told journalists that Russia was purposely seeking to demolish the country's energy grid, with attacks already disrupting gas facilities.
He said energy workers and government agencies were anticipating further attacks.