A district court said on Monday it found nothing illegal with a safety clearance granted to two reactors in Kyushu that were restarted after the 2011 Fukushima nuclear crisis, dismissing a demand for a retraction filed by plaintiffs who said it ignored the risk of volcanic eruptions.

The lawsuit was filed by 33 plaintiffs against a license authorizing design changes at reactors 1 and 2 at the Sendai nuclear power plant in Kagoshima Prefecture under tougher post-Fukushima safety regulations.

They were the first commercial reactors in the nation to be restarted after the crisis.