Ukraine warned there would be emergency blackouts once again in several regions as it repaired damage from missile attacks it said destroyed homes and knocked out power, while Moscow accused Kyiv of attacking deep inside Russia with drones.
A new Russian missile barrage had been anticipated in Ukraine for days and it took place just as emergency blackouts were due to end, with previous damage repaired.
The strikes, which plunged parts of Ukraine back into freezing darkness with temperatures below zero Celsius, were the latest in weeks of attacks hitting critical infrastructure and cutting off heat and water to many.
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