Wedoany.com News, Tokyo Electric Power Company (TEPCO) announced on the 8th that the cooling device used to control the increase of radioactive water at the Fukushima Daiichi Nuclear Power Plant issued an alarm and temporarily shut down.

To curb the increase of radioactive water inside the reactor buildings, TEPCO has been burying pipes underground around Units 1 to 4 since 2016, injecting coolant below -30 degrees Celsius to freeze the ground and form an "ice wall" to block groundwater inflow.

At around 8 a.m. local time on the 8th, the device issued a shutdown alarm. On-site personnel confirmed that the cooling device had stopped operating. Subsequently, TEPCO initiated emergency repairs and restarted the cooling system after confirming no abnormalities with the device at around 2 p.m. local time.

TEPCO stated that the underground temperature in the ice wall area showed no significant changes, there is no impact on the external environment, and they will continue to thoroughly investigate the specific cause of the shutdown.