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.

The protective shield built around the Chernobyl nuclear disaster site in Ukraine can no longer do its job to confine radioactive waste as a result of a drone strike earlier this year, according to the IAEA.

Russia unleashed a major missile and drone barrage on Ukraine overnight into Saturday, after U.S. and Ukrainian officials said they’ll meet on Saturday for a third day of talks aimed at ending the nearly four-year-old war.