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Tuesday, 11 August 2026

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Jellyfish invasion shuts down three nuclear reactors in France

In France, three nuclear reactors had to be shut down due to a jellyfish invasion. Another reactor is only operating partially.

Jellyfish invasion shuts down three nuclear reactors in France
Photo: Felix König · Wikimedia Commons · CC BY 3.0

In France, jellyfish have caused significant disruptions at several nuclear power plants. According to various media reports, three reactors had to be completely shut down due to the jellyfish invasion, while a fourth reactor is only able to operate partially.

Despite the shutdown of three reactors, reports indicate that there are no anticipated negative impacts on safety or the environment. The exact causes of the jellyfish invasion are still unknown.