The U.N. International Atomic Energy Agency said radiation levels at the shuttered plant in the Kyiv region have not increased.

Ukrainian President Volodymyr Zelenskyy said a Russian drone struck the protective covering of the nuclear reactor that exploded at Chernobyl in 1986.

Russia promptly accused Ukraine of planning the Chernobyl attack as a “false flag” operation. A Russian drone is reported to have struck the Chernobyl nuclear power plant's concrete "sarcophagus" in the early hours of Friday in an overnight attack.