The International Atomic Energy Agency, the UN's independent nuclear watchdog, condemned the fighting that happened near the Zaporizhzhia nuclear power plant reactors.
The agency warned of "severe danger if any reactors were hit" in a statement Friday.
"There are 15 nuclear reactors in Ukraine. If one of them blows, that's the end for everyone, that's the end of Europe," he wrote.
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Experts have said, however, that although this power plant is not built to specifically withstand the impact of artillery weapons, nearby fighting is unlikely to accidentally lead to a disaster.
Insider previously reported that the reactors are built robustly and have many safety features meant to prevent accidents like the infamous 1986 meltdown in Chernobyl in the north of Ukraine, where there are no longer any working reactors.
Zaporizhzhia is the largest nuclear power plant in Europe and the ninth-largest in the world, per The Guardian. It supplies about a fifth of Ukraine's energy, The Guardian reported.
According to the IAEA, Zaporizhzhia was on Friday still being operated by its regular staff while under Russian military control and there had been no release of radioactive material.
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