A Russian strike on a residential building in central Ukraine killed at least 14 people, including two children, emergency services said, one of many attacks across the country this weekend.

Competing claims have emerged over a deadly attack on a boarding school in Sudzha, a city in Russia's Kursk region under Ukrainian control.

A Russian drone struck a multi-storey apartment building in the northeastern Ukrainian city of Sumy early on Thursday, killing nine people and injuring 13, including a child, President Volodymyr Zelenskiy said.

Ukraine accused Russia on Saturday of killing four people in a strike on a boarding school sheltering civilians in the Kursk region town of Sudzha, which Kyiv has occupied for over five months. Kyiv launched a surprise cross-border offensive into Russia's Kursk region last August,