An aerial view from a plane shows a New Safe Confinement (NSC) structure over the old sarcophagus covering the damaged fourth reactor at the Chernobyl Nuclear Power Plant during a tour to the Chernobyl exclusion zone, Ukraine April 3, 2021. [Reuters]
Russian and Ukrainian forces fought on Thursday for control of Chernobyl, the still radioactive site of the world's worst nuclear accident and a factor in the collapse of the Soviet Union.