Iranian President Hassan Rohani has expressed dissatisfaction with progress in talks with major world powers on Tehran's nuclear program.
Rohani said on September 26 that progress at the negotiating table in the last few days had been "extremely slow."
Speaking to reporters on the sidelines of the UN General Assembly in New York, Rohani issued a reminder that the November deadline for reaching an agreement was approaching.
Rohani also said "courageous decisions" needed to be made and he warned there would never be any deal unless international sanctions on his country were lifted completely.
The Iranian president said, "We want a win-win agreement that is for the benefit of everyone."
This latest round of talks between Iran and representatives of the so-called 5+1 group -- Britain, China, France, Russia, and the United States plus Germany -- started in New York on September 18.
Reports from negotiations on September 26 confirmed that there had been little progress on convincing Iran to curb its nuclear development program in return for a gradual easing of sanctions.
The talks stretched on into September 27.
U.S. Secretary of State John Kerry said when addressing a meeting at the UN on the Comprehensive Nuclear Test Ban Treaty that it "remains our fervent hope that Iran and the P5+1 can in the next weeks come to an agreement that would benefit the world."
Kerry made those comments shortly after meeting with Iranian Foreign Minister Javad Zarif and the EU's chief negotiator Catherine Ashton in New York.
However, the Reuters and AFP news agencies reported that a "senior U.S. State Department official," speaking under condition of anonymity, said, "We do not have an understanding on all major issues... we have an enormous number of details still to work through."
The official said all the negotiators "are going back to our capitals" and will "absorb: what happened, before deciding when they would conduct their next round of negotiations.
The group has a deadline of November 24 to reach a deal,