During the night, Moscow's missile and drone strikes have resulted in power cuts in large parts of Ukraine's capital, Kyiv.
Nine people were wounded while residents in eastern districts were left without electricity and encountered problems to water systems, according to local authorities.
Meanwhile, a seven-year-old child was lost their life in a distinct Russian drone strike in the Zaporizhzhia area in the southern area, based on information from area administrators.
Moscow has intensified assaults on energy facilities over recent weeks, while the country's government has called for "concrete actions" from allies to exert influence on Russia.
"What's needed is not symbolic gestures but firm measures - from the US, the EU and the G7 - in providing protection systems and implementing sanctions," he wrote in a online statement.
Officials stated that hundreds of unmanned aircraft and several dozen missiles attacked Ukraine's energy infrastructure, describing such strikes as "cynical and calculated" and against "critical infrastructure" as winter approaches.
The energy minister said Moscow was "launching a major assault" and technical staff were working to fix the damage.
A barrage of missiles struck electrical systems and civilian homes in Kyiv.
Five out of the nine people injured in the attacks on the capital have been transported for medical care, according to municipal representatives.
Regional authorities said the urban area endured significant strikes throughout the evening. A young boy died and three other people were injured.
The strikes succeed evenings of bombing campaigns in the region, sections of which remain under the control of invading troops.
All of Ukraine is under warning for advanced weapon attacks, which are tougher to spot.
National leaders told reporters that Moscow was deliberately attempting to destroy the electrical infrastructure, with strikes already impacting energy systems.
He said technical personnel and officials were preparing for further attacks.
