Overnight, Russian aerial assaults have caused electricity outages in multiple districts of Ukraine's capital, Kyiv.
Nine people were wounded while local people in eastern neighborhoods were plunged into darkness and dealt with disruption to drinking water, according to city officials.
Meanwhile, a seven-year-old child was killed in a different Russian drone strike in the southeastern region in the southern area, based on information from local officials.
Moscow has increased assaults on electrical systems over the last fortnight, while Ukrainian leadership has called for "real steps" from international partners to apply pressure on Moscow.
"The necessity is not window dressing but firm measures - from the America, European nations and the major economies - in delivering protection systems and implementing restrictions," he wrote in a public message.
Authorities reported that numerous aerial vehicles and several dozen projectiles targeted energy facilities, describing such assaults as "cynical and calculated" and against "critical infrastructure" as temperatures become colder.
Government representatives said Russia was "launching a major assault" and repair crews were working to repair systems.
A series of attacks damaged electrical systems and civilian homes in the capital.
Five out of the nine people hurt in the assaults on the city have been transported for medical care, as confirmed by local officials.
Local officials said the metropolitan region experienced significant strikes throughout the evening. A minor lost their life and several individuals were injured.
The strikes succeed evenings of bombing campaigns in the area, sections of which are occupied by Russian forces.
All of Ukraine is under warning for advanced weapon attacks, which are tougher to identify.
National leaders told journalists that Moscow was purposely seeking to destroy the country's energy grid, with assaults already affecting energy systems.
He said energy workers and government agencies were bracing for further attacks.