Russian drones targeted infrastructure in Ukraine's capital and surrounding areas on Monday, damaging energy facilities and causing some power outages, officials said, as Russia extended its bombardment into the second day of 2023.

Ukrainian forces shot down 45 Iranian-made Sahed drones fired by Russia on the first night of the year, President Volodymyr Zelenskyy said on Sunday, praising Ukrainians for showing gratitude to the troops and one another.

"Drones, missiles, everything else will not help them," he said of the Russians. "Because we stand united. They are united only by fear."