new york u.n. secretary-general ant nio guterres condemn north korea missile launch japan friday say would discuss situation unite nations general assembly gather next week secretary-general call dprk leadership cease test comply relevant security council resolutions allow space explore resumption sincere dialogue denuclearization guterres say statement add would discuss concern party margins upcoming u.n. general assembly story correct first paragraph make clear guterres say discuss north korea entire u.n. u.n. chief condemn north korea missile launch