Ukrainian President Volodymyr Zelensky has condemned Russia’s “inhumane” attack on his country’s energy infrastructure on Christmas Day.

According to media reports the attack, which led to power cuts across the country, including in Kyiv, was confirmed by Moscow and claimed to have been achieved.

Russia’s defense confirmed that its forces had carried out a “massive strike” on “critical” energy facilities in Ukraine, with all targets hit.

 This was the 13th major attack on Ukraine’s energy sector this year, according to the country’s largest private energy company, DTEK.

US President Joe Biden criticized the attack as a “serious choice” to cut off the Ukrainian people’s access to heat and electricity during winter and to jeopardise the safety of its grid.

 Zelensky said work was being done to restore power as soon as possible and that “Russian evil will not break Ukraine and will not distort Christmas.”