Japan's largest nuclear power plant was shut down again due to a malfunction one day after restarting.

Tokyo Electric Power Company said on the 22nd that on the 21st, the newly restarted Unit 6 of the Kashiwazaki-Kariwa Nuclear Power Plant in Japan issued an alert during operation. Due to the need for investigation, it was decided to temporarily shut down the unit. Tokyo Electric Power Company released a news report on the 22nd, stating that in the early morning, an abnormal alert sounded during the operation to withdraw the reactor control rods. The workers immediately stopped the operation and are currently continuing the related investigation. The plant manager of the nuclear power plant, Takenori Inagaki, said at a press conference that evening that it is currently impossible to predict how long the investigation will last. The Kashiwazaki-Kariwa Nuclear Power Plant in Niigata Prefecture is Japan's largest nuclear power plant. Unit 6 of the plant was originally scheduled to restart on the 20th, but a malfunction in the alert system during the control rod extraction test on the 17th delayed the restart until the 21st. This is the first restart of a nuclear power plant under the control of Tokyo Electric Power Company since the accident at the Fukushima Daiichi Nuclear Power Plant following the Great East Japan Earthquake on March 11, 2011. The nuclear power plant is set to be shut down again just one day after restarting, causing concern among local residents. Niigata City resident Mitsuru Kojima, when interviewed by Kyodo News, said that the plant has been shut down for nearly ten years. The anxiety among residents of Niigata Prefecture has increased due to the plant being restarted only to be shut down again.