A drone attack by the Sudanese paramilitary forces hit a kindergarten in south-central Sudan, killing 50 people, including 33 children, a doctors’ group said.

Ukraine said in February a Russian drone had struck the protective shelter housing the nuclear reactor at Chernobyl, the site of the world's worst nuclear disaster in 1986. A fire at the site was quickly extinguished, Ukrainian President Volodymyr Zelensky said at the time. Russia denied targeting the site.

Russia launched a huge attack on Ukraine overnight as the country marked Armed Forces Day on Saturday, Ukraine's air force said.