đ Share this article Chornobyl Catastrophe Containment Structure Can No Longer Blocks Harmful Radiation, Needs Significant Restoration â International Atomic Energy Agency A containment structure encasing the Chornobyl reactor core in Ukraine has lost its primary function of blocking radiation, according to the IAEA. This failure follows a drone attack in February that caused significant damage in the structure. Structural Compromise from Aerial Attack Compromises Safety System A drone strike in February caused a breach in the multibillion-euro âNew Safe Confinementâ structure. This massive shield, constructed for âŹ1.5bn with work finishing in 2019, was intended to contain radiation for decades. A recent IAEA assessment mission confirmed that the drone impact had degraded the structural integrity of the steel confinement. The containment arch's main safety functions, such as confinement, are no longer operational, stated IAEA director general Rafael Grossi. Grossi noted that inspectors found no permanent damage to its load-bearing structures or monitoring systems. Historical Context of the Chernobyl Containment The original 1986 disaster at Chornobyl â which occurred when Ukraine was part of the Soviet Union â spewed radiation over much of Europe. During a frantic containment effort, Soviet engineers constructed a concrete âsarcophagusâ over the damaged reactor, but it had a three-decade design life. The new confinement was constructed to enable the future dismantling of the original structure, the damaged reactor building, and the melted nuclear fuel itself. Present Status and Required Actions While some repair work has been done, agency officials emphasized that a full-scale repair effort is absolutely necessary. This is required to prevent further degradation and to guarantee long-term nuclear safety. Ukrainian authorities had stated that a unmanned aircraft carrying a high-explosive warhead struck the facility, causing a fire and compromising the protective cladding. Radiation Readings: Reports indicated background radiation remained within safe limits after the incident with no reports of any leakage. Conflict Background: Russian forces occupied the Chernobyl exclusion zone for more than 30 days during the initial phase of the full-scale war. Wider Assessment: The IAEA carried out this review alongside a country-wide assessment of conflict-related damage to Ukraine's power substations. The situation underscore the persistent risks at one of the the planet's most infamous atomic accident locations amid ongoing armed conflict.