Zarif is now holding talks with Kerry and Ashton as negotiations are underway in Geneva for the third day with the aim of reaching a deal.
Negotiations between Iran and the five permanent members of the UN Security Council - the United States, China, Russia, France and Britain - plus Germany over the Islamic Republic’s civilian nuclear work began in Geneva, Switzerland, on Thursday.
The US secretary of state and the foreign ministers of Britain, France and Germany joined the talks on Friday.
Diplomatic sources have so far described the ongoing nuclear talks as good.
Ahead of the Geneva talks, Abbas Araqchi, an Iranian deputy foreign minister, who is also a member of Iran’s nuclear negotiating team, said Tehran would enter talks with seriousness, expressing hope for substantial progress in the discussions.
