Throughout the evening, Moscow's missile and drone strikes have led to blackouts in extensive areas of Ukraine's capital, Kyiv.
A number of civilians were wounded while local people in eastern districts were left without electricity and dealt with disruption to water supplies, according to city officials.
Meanwhile, a seven-year-old child was fatally injured in a different assault in the Zaporizhzhia region in the southeastern part, as reported by area administrators.
Moscow has increased attacks on energy facilities over the last fortnight, while Ukrainian leadership has demanded "real steps" from international partners to increase pressure on Russia.
"What's needed is not window dressing but decisive action - from the United States, the EU and the G7 - in providing air defence systems and implementing sanctions," was stated in a online statement.
He said that hundreds of unmanned aircraft and more than 30 rockets targeted the country's power systems, characterizing such assaults as "cynical and calculated" and against "everything that sustains normal life" as temperatures become colder.
Energy officials said Russia was "conducting extensive attacks" and maintenance teams were striving to repair systems.
A wave of strikes hit energy infrastructure and civilian homes in Kyiv.
Five out of the nine people wounded in the attacks on the capital have been hospitalized, per statements from municipal representatives.
Local officials said the city experienced intense attacks overnight. A young boy lost their life and multiple civilians were wounded.
The strikes come after evenings of air raids in the region, portions of which are occupied by invading troops.
All of Ukraine is in a state of readiness for advanced weapon attacks, which are more difficult to identify.
Government officials told journalists that Russia was deliberately attempting to destroy the electrical infrastructure, with attacks already impacting gas facilities.
He said energy workers and officials were anticipating further attacks.
