🔗 Share this article

A protective shield encasing the Chernobyl nuclear reactor in Ukraine can no longer perform its primary function of containing radioactive material, according to the International Atomic Energy Agency (IAEA). This failure follows a drone attack in February that blew a hole in the structure.

Structural Compromise from Aerial Attack Degrades Safety Structure

An attack by an unmanned aerial vehicle in the second month of the year severely damaged the so-called “new safe confinement” structure. This massive shield, built at a cost of €1.5bn and completed in 2019, was intended to contain radiation for decades. An IAEA assessment mission found that the drone impact had degraded the integrity of the steel confinement.

The [protective structure] had lost its primary safety functions, including the confinement capability, stated IAEA director general Rafael Grossi. Grossi noted that the mission confirmed no permanent damage to its load-bearing structures or sensor systems.

Historical Context of the Chornobyl Shelter

The initial 1986 disaster at the Chernobyl plant – which occurred when Ukraine was a republic within the Soviet Union – spewed radioactive fallout over much of Europe. During a frantic containment effort, Soviet authorities constructed a concrete shelter over the damaged reactor, but it had a three-decade design life. The new confinement was erected to allow for the future dismantling of the old sarcophagus, the destroyed reactor hall, and the molten fuel within.

Present Status and Necessary Actions

Although limited repair work has been done, the IAEA stressed that a full-scale repair effort is absolutely necessary. This is needed to prevent further degradation and to guarantee long-term nuclear safety. Ukrainian authorities had stated that a unmanned aircraft armed with a powerful explosive hit the plant, causing a fire and compromising the outer shielding.

• Radiation Readings: Reports indicated background radiation remained normal and stable following the attack with no indication of any leakage.
• Geopolitical Context: Moscow's troops occupied the Chernobyl exclusion zone for more than 30 days during the initial stages of the 2022 invasion.
• Broader Inspection: The agency conducted this inspection concurrently with a country-wide assessment of war damage to the country's power substations.

These developments underscore the ongoing vulnerabilities at one of the world's most infamous atomic accident locations during ongoing armed conflict.