A senior official of Nihon Hidankyo, or the Japan Confederation of A- and H-Bomb Sufferers Organizations, on Saturday voiced his disappointment as an international nuclear nonproliferation conference broke down again.

It was “simply regrettable” that the 2026 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons, or NPT, ended in New York on Friday without an outcome document after four weeks of discussions, Nihon Hidankyo Secretary-General Jiro Hamasumi said at an online news conference.

The NPT review conference failed to adopt a final document for the third consecutive meeting due chiefly to differences over Iran’s nuclear development program.