UN urges North Korea to de-nuclearize again UN urges North Korea to de-nuclearize again Updated on : 16-05-2017 08:30 AM UN Secretary-General Antonio Guterres has condemned North Korea over its latest ballistic missile launch and called on Pyongyang to return to de-nuclearization. The UN chief called on North Korea to ensure full compliance with its international obligations and return to the path of de-nuclearization. North Korea had carried out its latest test of a ballistic missile on Sunday, which Pyongyang said was capable of carrying a heavy nuclear warhead. The UN Security Council was weighing its response to the latest launch. A closed-door emergency Council session will be held in on Tuesday. Under UN resolutions, North Korea is barred from developing nuclear and missile technology.