beijing unite state say saturday directly communicate north korea nuclear missile program pyongyang show interest dialogue disclosure u.s. secretary state rex tillerson trip china represent first time speak extent u.s. outreach north korea pursuit nuclear-tipped intercontinental ballistic missile probe stay tune tillerson tell group reporters beijing ask would like talk line communications pyongyang dark situation blackout say communication happen directly cite two three u.s. channel open pyongyang talk talk say without elaborate americans involve contact frequent substantive goal initial dialogue would simple find directly north korea want discuss even get far yet say try tamp expectations state department say late sign pyongyang interest talk north korean officials show indication interest ready talk regard denuclearization department spokeswoman heather nauert say statement tillerson previously offer little detail u.s. outreach sept. 20 acknowledge limit contact pyongyang u.n. envoy ask tillerson assertion communication might pyongyang washington spokesman north korean mission unite nations say go detail tillerson remark follow day meet beijing alarm recent exchange war-like threats personal insult north korean leader kim jong un u.s. president donald trump think whole situation bite overheat right tillerson say think everyone would like calm obviously would help north korea would stop fire missiles calm things lot south korean officials voice concern north korea could conduct provocative act near anniversary found communist party oct. 10 possibly china hold communist party congress oct. 18. north korea fast advance toward goal develop nuclear-tipped missile capable hit u.s. mainland conduct sixth large nuclear test sept. threaten test hydrogen bomb pacific u.s. officials include tillerson say beijing long account 90 percent north korea foreign trade appear increasingly will cut tie neighbor economy adopt u.n. sanction tillerson say china assertive posture due realization north korea nuclear missile capabilities advance far think also sense begin run time really change dynamic tillerson say goal sanction would get north korea kim view nuclear weapons liability strength still u.s. intelligence community believe kim likely give weapons program willingly regardless sanction tillerson work unify view intelligence agencies say amount pressure put stop senator bob corker tell hear chamber thursday kim see nuclear-tipped intercontinental ballistic missiles ticket survival corker say tillerson agree kim nuclear missile program aim ensure security renew assurances unite state seek topple kim government look objective denuclearization north korea say objective get rid objective collapse regime unclear actual negotiations pyongyang might possible white house national security adviser h.r mcmaster say monday set precondition talk add however pyongyang capabilities far advance simply freeze program return concessions also dismiss idea negotiate pyongyang even continue develop nuclear weapons program tillerson march suggest unite state would engage north korea negotiations give nuclear weapons acknowledge saturday denuclearization would incremental process foolish think go sit say ok do nuclear weapons go go process engagement north korea say trump due visit china november call regard north korea promise take step rebalance trade relationship administration say put u.s. businesses disadvantage chinese president xi jinping mention north korea open remark meet tillerson saturday instead offer warm word trump say expect u.s. president visit wonderful two us also maintain good work relationship personal friendship xi say comment front reporters u.s. directly communicate north korea seek dialogue