A top Iranian nuclear negotiator has said "disagreements over serious questions" persisted in the latest talks with European officials on Tehran’s nuclear program.
Deputy Foreign Minister Majid Takht-Ravanchi urged the parties on September 13 to "respect the red lines" drawn up by Iran to reach an agreement.
The remarks came after Iranian officials and their counterparts from Britain, France, and Germany held talks earlier this week in Vienna.
The three EU nations form part of the so-called P5+1 group with the United States, Russia, and China due to resume negotiations with Iran in New York on September 18.
The parties reached an interim agreement with Tehran last year and have set a November 24 deadline for a final deal that would restrict Iran's nuclear activities in exchange for the removal of sanctions.