A comprehensive safety assessment of the New Safe Confinement (NSC) at the Chernobyl nuclear site in Ukraine has shown it had lost its primary safety functions, including the confinement capability, following a drone strike in February, the International Atomic Energy Agency said.
The agency said a team completed the assessment of the NSC last week.
The drone strike on 14 February pierced a large hole through the roof of the €1.5bn ($1.7bn) NSC, which was built to prevent any radioactive release from the destroyed Unit 4 reactor and protect it from external hazards.