Geneva__ Talks between Iran and six world powers made progress in narrowing differences but did not yield an agreement, despite raised hopes after US Secretary of State John Kerry and other P5+1 foreign ministers flew in over the past two days, in seeming anticipation of a breakthrough.

European Union foreign policy chief Catherine Ashton and Iranian Foreign Minister Mohammad Javad Zarif, speaking at a first-ever joint press conference at the conclusion of talks, put an upbeat spin on the past three days' proceedings, saying significant progress had been made and announcing they would meet again in Geneva on Nov. 20-21, this time at the political director level.

But France's Foreign Minister Laurent Fabius preempted their press conference, breaking protocol to announce, ahead of Ashton, that they had not reached an agreement.

Earlier Saturday, Fabius announced that he did not accept the draft nuclear accord, abandoning the usual efforts by the P5+1 to project unity and keep details of their internal discussions and disagreements behind closed doors.