One of the largest French nuclear power plants was temporarily shut down after a swarm of jellyfish entered the water intake systems used to cool the coastal reactors, on Monday its operator said.

PARIS: Four reactors at France’s Gravelines nuclear power plant were shut down late Sunday due to a swarm of jellyfish in the filter drums that pull in cooling water, operator EDF…

‘Massive and unpredictable’ swarm entered filter drums that pull in water, Gravelines operator EDF says