During the night, Moscow's aerial assaults have resulted in power cuts in extensive areas of the capital city, Kyiv.
A number of civilians were wounded while residents in the city's east were plunged into darkness and dealt with interruptions to water supplies, according to municipal leaders.
At the same time, a young boy was fatally injured in a separate assault in the Zaporizhzhia area in the country's south-east, based on information from regional authorities.
Russian forces has increased strikes on energy facilities over recent weeks, while Ukrainian leadership has demanded "real steps" from partner nations to increase pressure on Russia.
"The necessity is not window dressing but firm measures - from the United States, Europe and the Group of Seven - in supplying defensive weapons and applying sanctions," was stated in a public message.
Authorities reported that hundreds of unmanned aircraft and more than 30 missiles attacked energy facilities, describing such assaults as "cynical and calculated" and against "everything that sustains normal life" as temperatures become colder.
Energy officials said Russia was "inflicting a massive strike" and repair crews were laboring to fix the damage.
A series of attacks hit energy infrastructure and residential structures in Kyiv.
Five out of the nine people injured in the attacks on the capital have been transported for medical care, as confirmed by city authorities.
Local officials said the metropolitan region came under heavy assaults during nighttime hours. A young boy died and several individuals were hurt.
The attacks succeed evenings of air raids in the territory, parts of which remain under the control of invading troops.
The entire country is in a state of readiness for hypersonic Kinzhal missile strikes, which are more difficult to detect.
National leaders told the media that Moscow was purposely seeking to damage the country's energy grid, with attacks already impacting gas facilities.
He said utility staff and officials were bracing for further attacks.
