The global nuclear watchdog said on Wednesday its boss would fly to Tehran to discuss one of the biggest sticking points that need to be resolved so that Iran and world powers can reach a breakthrough final nuclear deal by a new deadline of next week.
Iran and six world powers gave themselves an extra week on Tuesday to reach an accord that would curb Tehran's nuclear program in exchange for relief from economic sanctions, after it became clear that a June 30 deadline would not be met. Despite the lapsed deadline, diplomats have given upbeat assessments of the prospects for a deal.
U.S. Secretary of State John Kerry and Iranian Foreign Minister Mohammad Javad Zarif held one-on-one talks on Wednesday.
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