🔗 Share this article Chornobyl Disaster Containment Structure No Longer Effectively Blocks Radiation, Requires Major Restoration – IAEA A protective shield covering the Chernobyl nuclear reactor in Ukraine has lost its primary function of blocking radiation, as announced by the International Atomic Energy Agency (IAEA). This loss of function comes after a drone strike earlier this year that caused significant damage in the structure. Structural Compromise from Aerial Attack Compromises Safety Structure An attack by an unmanned aerial vehicle in February caused a breach in the so-called “New Safe Confinement” structure. This massive shield, built at a cost of €1.5bn with work finishing in 2019, was intended to contain radiation over the long term. A recent IAEA assessment mission found that the drone impact had weakened the integrity of the steel confinement. The containment arch's main safety functions, such as confinement, are no longer operational, said IAEA director general Rafael Grossi. Grossi noted that the mission confirmed no lasting harm to key support structures or sensor systems. Historical Context of the Chernobyl Shelter The original 1986 explosion at the Chernobyl plant – which occurred when Ukraine was part of the Soviet Union – released radioactive fallout across Europe. In a hurried response, Soviet engineers constructed a concrete “sarcophagus” over the damaged reactor, though it possessed only a three-decade design life. The new confinement was erected to enable the eventual decommissioning of the old sarcophagus, the destroyed reactor hall, and the melted nuclear fuel itself. Current Situation and Necessary Actions While some repairs have been carried out, agency officials emphasized that a full-scale repair effort is essential. This is required to prevent further degradation and to ensure safety for the coming decades. Officials in Ukraine previously reported that a drone carrying a powerful explosive struck the facility, causing a fire and compromising the protective cladding. Radiation Levels: Reports indicated radiation levels remained within safe limits after the incident with no reports of radiation leaks. Geopolitical Context: Moscow's troops occupied the Chornobyl site for more than 30 days in the early stages of the full-scale war. Broader Inspection: The agency carried out this review concurrently with a nationwide survey of conflict-related damage to Ukraine's electricity infrastructure. These developments highlight the ongoing vulnerabilities at one of the world's most notorious nuclear disaster sites amid ongoing armed conflict.