Tehran, April 12 -- Iran's foreign ministry spokesperson Esmaeil Baqaei on Sunday said that the recent meeting with US officials was the longest round of negotiations they have had in the past year.

Baqaei, who heads the Center for Public Diplomacy of Iran, noted in his interview to local media that on a number of issues, both parties reached understandings some key issues, however, their positions remained apart and ultimately they didn't reach an agreement.

"I believe this round of negotiations was indeed the longest we've had this past year. Twenty-four or twenty-five hours--starting yesterday morning when indirect talks began with messages exchanged between the two sides through the Pakistani mediator. It continued non-stop until no...