Iran says after nuclear talks with U.S., EU 'lots of work' remains

GENEVA (Reuters) - A top Iranian negotiator said a meeting with U.S. Secretary of State John Kerry and European Union foreign policy chief Catherine Ashton was productive but that much work remained to reach a deal on the Islamic state's nuclear program. Iranian Foreign Minister Mohammad Javad Zarif, Kerry and Ashton held a five-hour meeting in Geneva on Friday evening to try to narrow differences in the search for an agreement to end a decade-old nuclear standoff. "It was productive but still we have lots of work to do," Iranian Deputy Foreign Minister Abbas Araqchi told reporters after he arrived back at his hotel in Geneva shortly before midnight (6 p.m. ET). (Reporting by Louis Charbonneau, Lesley Wroughton, Yeganeh Torbati; Editing by Sandra Maler)