Ukraine is switching to emergency shutdowns to stabilize its power grid after Monday’s Russian missile attacks, President Volodymyr Zelensky has said.
He said many regions were affected, and the local authorities warned that about half of the Kyiv region would remain without electricity in the coming days.
Four people were killed in Monday’s attacks.
Overnight, more missiles hit critical infrastructure near the southern city of Zaporizhzhia, officials said.
In a separate development on Tuesday, the governor of Russia’s Kursk region said a drone attack on an airfield set an oil storage tank alight.
Video posted online shows fierce flames and dense black smoke billowing from the site.
There were no casualties, said Roman Starovoyt, but two local schools were closed for the day. He did not say who could be behind the attack in the region that borders Ukraine.
In Ukraine, the energy minister said he hoped to significantly reduce the power deficit caused by the latest Russian strikes by Tuesday evening, bringing nuclear power stations back onto the grid.
The country is now seeing snow and sub-zero temperatures in many regions, and millions are without electricity and running water. There are fears that a number of people may die of hypothermia.
In his video address late on Monday, President Zelensky said 70 Russian missiles were fired on Monday, and “most of them were shot down”.
The Russian defence ministry, meanwhile, said it hit all 17 of its intended targets during its “massive strike using high-precision weapons”.
Mr Zelensky said “the biggest number of shutdowns is in Vinnytsia, Kyiv, Zhytomyr, Dnipropetrovsk, Odesa, Khmelnytskyi and Cherkasy regions”, referring to regions spanning the length and breadth of the country.
But he pledged that the authorities “will do everything to restore stability”.
The Ukrainian leader said electricity supplies were also affected in neighbouring Moldova, proving that Russia’s actions were “a threat not only to Ukraine but also to our entire region”.