beijing denuclearization korean peninsula achieve peaceful diplomatic mean china foreign ministry say monday unite nations discuss fresh sanction north korea follow late nuclear test regular news brief ministry spokesman geng shuang reiterate china call step u.n. security council say hop members could reach consensus u.s.-drafted resolution originally call oil embargo north halt key textile export financial travel ban leader kim jong un appear water accord draft see reuters north korea draw global condemnation conduct sixth nuclear test sept say advance hydrogen bomb china say diplomacy need rid korean peninsula nuclear weapons