Chernobyl repairs stall after Russian drone strike

Chernobyl’s €1.5bn protective dome was built to last a century. Two months after a Russian drone strike damaged its outer shell, Ukraine and international agencies are warning that the structure’s core safety function—confining radioactive material—has been compromised and that comprehensive repairs have yet to begin.

According to Euronews, the International Atomic Energy Agency has confirmed that the New Safe Confinement no longer provides full confinement after the February impact, even though monitoring systems have not recorded a radiation release. Greenpeace, citing the condition of the older inner “sarcophagus”, says the longer the outer structure remains degraded, the higher the risk that an internal collapse could loft “highly radioactive dust” beyond the exclusion zone. The plant’s director, Sergiy Tarakanov, has separately warned that another strike nearby could trigger structural failure.

The episode exposes a recurring weakness in Europe’s security architecture: the continent’s worst nuclear accident site is protected by an engineering project financed by international donors, but it sits inside an active warzone where insurance, contractors and supply chains follow the threat environment rather than diplomatic statements. The dome was installed in 2016 after years of design work and cross-border funding; it was not designed to be patched under repeated attack.

France’s foreign minister Jean-Noël Barrot has put the repair bill at roughly €500 million, a figure that underlines the asymmetry of the battlefield. A drone that costs a fraction of that can create a problem that only a consortium of states can pay for—and that only specialised firms can fix. Meanwhile, the IAEA can inspect and report, but it cannot provide security guarantees, compel repairs, or stop the next strike.

Chernobyl is also a reminder that “nuclear safety” is not only about reactors that generate electricity. The site contains unstable debris, fuel-containing materials and contaminated dust from the 1986 explosion; the current strategy is to dismantle dangerous parts of the old shelter in a controlled way, using the dome as a sealed working environment. If the dome cannot perform its confinement role, that long-planned deconstruction becomes harder to execute, and the risk shifts from managed removal to unmanaged decay.

On the eve of the disaster’s 40th anniversary, the most immediate question is not what Chernobyl means in history books but whether the world can still maintain a giant piece of safety-critical infrastructure when the surrounding airspace is treated as target practice.

The IAEA says the dome’s primary safety functions have been lost. The bill for restoring them is now being discussed in the middle of a shooting war.