Japan Halts Reactor Operation After Steam Leak in Fukui Prefecture

Japan has suspended operations at one of its nuclear reactors in Fukui Prefecture following the detection of a steam leak. The escaping steam was not contaminated with radioactive materials, and no radiation impact has been recorded outside the plant so far, according to Japanese news agency Kyodo.

The operator, Kansai Electric Power Company, discovered the steam leak near the high-pressure turbine inside the reactor early Friday morning, Kyodo reported.

Fukui Prefecture is a key region for nuclear energy in Japan, hosting multiple reactors along its Sea of Japan coastline. These facilities are subject to strict oversight by Japanese regulators, particularly following major historical incidents in the nuclear power sector.

The reactor shutdown does not necessarily indicate an immediate danger to residents. It is a precautionary measure taken until the system is confirmed fully safe for restart. Such investigations typically take days or even weeks, depending on the scale and complexity of the issue.

A nuclear meltdown occurred in March 2011 at reactors 1, 2, and 3 of the Fukushima Daiichi Nuclear Power Plant after an earthquake struck northeastern Japan.