An alert from a monitoring system was triggered while workers were starting up reactor number six at Kashiwazaki-Kariwa ...

Operator says it does not know when the problem at the Kashiwazaki-Kariwa plant in Niigata province will be solved, after an alarm sounded during start-up ...

The operator says reactor remains "stable" and has no "radioactive impact outside".

The restart of the world's largest nuclear power plant was suspended in Japan on Thursday, with the operator saying it does ...

Japan’s long-awaited return to nuclear power hit another hurdle this week. Just hours after operations resumed at a flagship ...