beijing unite state china work together get nuclear-armed north korea take different course u.s. secretary state rex tillerson say saturday soften previous criticism beijing talk chinese counterpart china irritate repeatedly tell washington rein north korea surge nuclear ballistic missile program one series hurdle tie world two large economies chinese foreign minister wang yi describe talk tillerson candid pragmatic productive two side appear make progress put aside differences difficult issue least advance plan summit chinese president xi jinping u.s. president donald trump friday tillerson issue trump administration stark warn yet north korea say seoul military response would table pyongyang take action threaten south korean u.s. force tillerson take soft line meet wang tell reporters china unite state note efforts last two decades succeed curb threat pose north korea weapons program share common view sense tensions peninsula quite high right things reach rather dangerous level commit everything prevent type conflict break tillerson say say wang agree work together persuade north korea make course correction move away development nuclear weapons wang say u.n. resolutions north korea map sanction call efforts resume efforts negotiate settlement matter happen stay commit diplomatic mean way seek peaceful settlement say wang say tillerson hope find ways restart talk neither us ready give hope peace say tillerson say friday talk north korea could take place begin process unwind weapons program u.s. official tell reuters washington early week tillerson may raise prospect impose secondary sanction chinese bank firm business north korea defiance u.n. sanction trump say tweet friday north korea behave badly accuse china pyongyang neighbour major ally little resolve crisis xi-trump summit however two side appear tone differences work finalise trip xi unite state possibly next month first summit trump wang say two countries close communication arrange meet give detail state-run chinese tabloid global time say saturday china interest stop north korea nuclear ambition suggest china cut country completely ridiculous would fraught danger chaos north korea would first bring disaster china sorry unite state south korea right demand china say editorial former oil executive prior diplomatic experience tillerson meet xi sunday north korea conduct two nuclear test series missile launch since begin last year last week launch four ballistic missiles work develop nuclear-tipped missiles reach unite state washington press beijing stop north korea nuclear missile program china call dual track approach urge north korea suspend test unite state south korea suspend military drill side return talk china also infuriate deployment thaad terminal high altitude area defense missile defence system south korea say harm china security nothing ease tensions china say system powerful radar extend country northeast potentially track chinese missile launch maybe even intercept russia also oppose thaad reason tricky issue include self-ruled island taiwan china claim trump administration craft big new arm package taiwan could include advance rocket systems anti-ship missiles defend china u.s. officials say deal sure anger beijing wang say saturday talk include discussions thaad taiwan give detail u.s. china soften tone say work together north korea