The United States made some progress in talks with Iran on its nuclear program and managed to "sharpen up some of the tough issues," a senior U.S. official said on Monday, but both sides said much remained to be done.
Negotiators from Iran and six major powers agreed to resume talks next Monday at a venue to be decided, the official said, speaking after U.S. Secretary of State John Kerry and Foreign Minister Mohammad Javad Zarif held two-day talks in Geneva.
Zarif told Iran's Fars news agency: "We had serious talks with the P5+1 representatives and especially with the Americans in the past three days . . . But still there is a long way to reach a final agreement."