Overnight, Moscow's missile and drone strikes have resulted in power cuts in extensive areas of Ukraine's capital, Kyiv.
A number of civilians were hurt while local people in eastern districts were plunged into darkness and faced problems to water supplies, according to local authorities.
At the same time, a seven-year-old child was killed in a separate aerial attack in the Zaporizhzhia region in the southern area, as reported by local officials.
Russian forces has intensified attacks on electrical systems over recent weeks, while the country's government has requested "concrete actions" from allies to exert influence on Russia.
"The necessity is not window dressing but firm measures - from the US, European nations and the major economies - in delivering protection systems and enforcing restrictions," mentioned in a public message.
Officials stated that hundreds of unmanned aircraft and more than 30 missiles attacked the country's power systems, labeling such strikes as "cynical and calculated" and against "critical infrastructure" as the weather cools.
The energy minister said Moscow was "inflicting a massive strike" and repair crews were working to fix the damage.
A wave of strikes struck power facilities and civilian homes in the capital.
Several of the people hurt in the assaults on the city have been transported for medical care, according to local officials.
Area administrators said the city came under heavy assaults throughout the evening. A seven-year-old child was killed and three other people were injured.
The attacks succeed evenings of aerial attacks in the area, sections of which are occupied by Moscow's military.
All of Ukraine is on alert for hypersonic Kinzhal missile strikes, which are harder to identify.
Government officials told journalists that Moscow was intentionally trying to destroy the national power system, with assaults already disrupting fuel infrastructure.
Authorities confirmed energy workers and government agencies were preparing for additional strikes.
