Ukrainian President Volodymyr Zelensky on Wednesday denounced an "inhumane" attack from Russia, which launched over 170 missiles and drones on his war-torn country's power grid on Christmas Day, killing an energy worker.
The country woke up at 5:30 am (0330 GMT) to an air raid alarm, shortly followed by air force reports that Russia had launched Kalibr cruise missiles from the Black Sea.
"Putin deliberately chose Christmas to attack. What could be more inhumane? More than 70 missiles, including ballistic missiles, and more than a hundred attack drones. The target is our energy system," Zelensky said.
This was the 13th large-scale strike on Ukraine's energy system this year, the latest in Russia's campaign targeting the power grid during winter.
Russia meanwhile said five people had died in Ukrainian strikes and a falling drone in the border region of Kursk and in North Ossetia in the Caucasus.
Ukraine said its air force downed 58 out of 79 Russian-launched missiles. It did not, however, down the two Korean KN-23 ballistic missiles launched by Russia.
British Prime Minister Keir Starmer condemned the strikes.
"I pay tribute to the resilience of the Ukrainian people, and the leadership of President Zelensky, in the face of further drone and missile attacks from Putin's bloody and brutal war machine with no respite even at Christmas," Starmer said.
Kyiv also said a Russian missile went through Moldovan and Romanian airspace, but Romania said it detected no such violation while Moldova said it launched investigations.