`` Istanbul 's current position falls far short of what is needed , '' says Islamic official . Iran has the right to enrich uranium , but negotiation may be possible , Ashton suggests . Ashton said she would be in touch with Jalili `` very soon in order to see how to go forward . '' It 's clear the six sides `` remain far apart '' on substance , the Carnegie Endowment for International Peace foreign policy chief says . No date or location is agreed upon for new talks between world powers and Iran .
`` Istanbul 's current position falls far short of what is needed , '' says Islamic official . Iran has the right to enrich uranium , but negotiation may be possible , Ashton suggests . It 's clear the six sides `` remain far apart '' on substance , the Carnegie Endowment for International Peace foreign policy chief says . No date or location is agreed upon for new talks between world powers and Iran .