At least six people have died after Russia launched hundreds of missile and drone attacks on energy infrastructure and residential targets in Ukraine overnight.

A strike on an apartment building in the city of Dnipro killed two people and wounded 12, while three died in Zaporizhzhia.

In all, 25 locations across Ukraine, including the capital city Kyiv, were hit, leaving many areas without electricity and heating. Prime Minister Yulia Svyrydenko said on Telegram that major energy facilities were damaged in the Poltava, Kharkiv, and Kyiv regions, and work was under way to restore power.

In Russia, the defence ministry said its forces had shot down 79 Ukrainian drones overnight.

The Ukrainian air force indicated that Russia had launched more than 450 exploding bomber drones and 45 missiles, with nine missiles and 406 drones reportedly shot down.

The Ukrainian Energy Ministry noted power cuts in the Dnipropetrovsk, Chernihiv, Zaporizhzhya, Odesa, and Kirovohrad regions, although restoration efforts were ongoing.

Svyrydenko stated that critical infrastructure facilities have been reconnected, and water supply is being maintained using generators.

Russian authorities argue their attacks on energy targets are aimed at the Ukrainian military, but this tactic has increasingly come to symbolize a broader intent to undermine the morale and economic stability of Ukraine.

Ukrainian President Volodymyr Zelensky emphasized that there must be 'no exceptions' to Western sanctions on Russian energy, urging for a more robust international response to Moscow's persistent aggression.

The recent strikes come on the heels of a controversial decision by the US to grant Hungary a one-year exemption on restrictions related to Russian oil and gas purchases, a development that has raised concerns among Ukrainian officials regarding the consistency and effectiveness of international sanctions against Russia.

As the conflict continues, it tests not only the resilience of Ukraine's defense but also the resolve of allied nations to maintain pressure on Russia during the harsh winter months.