🔗 Share this article Chernobyl Catastrophe Containment Structure No Longer Effectively Blocks Radiation, Needs Significant Repair – IAEA The containment structure encasing the Chornobyl nuclear reactor in Ukraine has lost its main safety function of blocking radiation, according to the IAEA. This loss of function follows a drone attack earlier this year that caused significant damage in the structure. Damage from Aerial Attack Compromises Safety System An attack by an unmanned aerial vehicle in the second month of the year severely damaged the multibillion-euro “new safe confinement” arch. This massive shield, built at a cost of €1.5bn with work finishing in 2019, was intended to contain radiation for decades. A recent IAEA assessment mission found that the strike had weakened the structural integrity of the steel arch. The containment arch's main safety functions, such as confinement, are no longer operational, stated IAEA head Rafael Grossi. Grossi noted that inspectors found no lasting harm to key support structures or sensor systems. Historical Context of the Chernobyl Shelter The original 1986 disaster at the Chernobyl plant – which occurred when Ukraine was part of the Soviet Union – released radiation over much of Europe. In a hurried containment effort, Soviet authorities constructed a concrete shelter over the damaged reactor, but it had a three-decade design life. The New Safe Confinement was erected to enable the future decommissioning of the old sarcophagus, the destroyed reactor hall, and the melted nuclear fuel within. Present Status and Necessary Actions Although limited repairs have been carried out, agency officials stressed that a full-scale repair effort is essential. This is required to stop additional deterioration and to guarantee safety for the coming decades. Ukrainian authorities previously reported that a unmanned aircraft armed with a powerful explosive hit 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 indication of radiation leaks. Geopolitical Context: Russian forces seized the Chernobyl exclusion zone for more than 30 days in the early phase of the 2022 invasion. Broader Inspection: The IAEA carried out this review alongside a nationwide survey of war damage to Ukraine's electricity infrastructure. These developments highlight the persistent risks at one of the world's most notorious atomic accident locations amid ongoing hostilities.