Tokyo Electric Power Company will suspend work at its nuclear plant on the Sea of Japan coast during the 2020 Tokyo Olympics and Paralympics as part of antiterrorism measures.
TEPCO is conducting safety work at the Kashiwazaki-Kariwa plant in Niigata Prefecture to restart two of the seven reactors that are offline.
The utility says it will put all work on hold at the plant during the Olympics, and suspend welding and other operations using fire during the Paralympics.
It cites an increased risk of terror attacks during the sports event that will attract global attention with many people moving about.
The company also plans to set limits on welding and other operations at its Fukushima Daiichi and Daini nuclear power plants, where decommissioning work is under way.
In order to reduce risks of power failure, TEPCO will suspend part of the work for transmitting and supplying electricity during the Tokyo Games.