baghdad iraqi force kurdish peshmerga fighters reach agreement friday stop fight northern iraq kurdistan regional government krg say although status ceasefire remain unclear spokesman baghdad u.s.-led coalition islamic state early say deal cover front conflict break kurdish authorities hold independence referendum last month areas northern iraq however late tell reuters truce officially agree iraqi military spokesman decline comment accord krg base kurdish autonomous region capital erbil ceasefire enter effect friday 2200 gmt thursday ceasefire hold vahal ali director krg president masoud barzani media office tell reuters diplomatic efforts underway set date talk start erbil baghdad u.s. secretary state rex tillerson call iraqi prime minister haider al-abadi urge dialogue start iraqi central government say statement iraqi government force iranian-backed militias kurdish troop fight alongside defeat islamic state also call isis alliance falter militants largely defeat country iraqi government force tehran-backed popular mobilisation launch surprise offensive oct. 16 retaliation sept. 25 independence referendum organize krg offensive aim capture dispute territories claim krg iraqi central government well border cross oil facilities city kirkuk lie oil produce area fell iraqi force without much resistance oct. 16 peshmerga begin fight back withdraw close kurdish autonomous region violent clash happen northwestern corner peshmerga defend land cross turkey syria oil hub control krg crude export locate region fish-khabur speak geneva thursday tillerson say disappoint party unable reach entirely peaceful resolution encourage abadi accept krg overtures talk basis iraqi constitution party talk one another official ceasefire u.s. colonel ryan dillon spokesman u.s.-led coalition baghdad tell reuters correct early statement say ceasefire agree interview kurdish tv rudaw dillon call two side extend deal complete halt hostility refocus efforts defeat isis encourage dialogue try get tensions add abadi demand thursday kurds declare referendum void reject krg offer suspend independence push resolve crisis talk accept anything cancellation respect constitution say statement visit tehran krg propose wednesday immediate ceasefire suspension referendum result start open dialogue federal government base iraqi constitution fall kirkuk major blow kurdish drive independence champion barzani halve region oil export revenue iraqi force kurdish peshmerga agree ceasefire kurdistan say