Ukrainian authorities on Friday gradually restored power, aided by the reconnection of the country's four nuclear plants, but millions of people were still in the dark after the most devastating Russian airstrikes of the war.
President Volodymyr Zelenskyy pleaded with Ukrainians to use energy sparingly. "If there is electricity, this doesn't mean you can turn on several powerful electrical appliances at once," he said in an evening video address.
He said 6 million people were still without power, half as many as there were in the immediate aftermath of the Russian assault on Wednesday. The attacks caused the worst damage so far in the conflict, leaving millions of people with no light, water or heat even as temperatures fell below zero.
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