Iran has not yet made a final decision on a possible agreement with the U.S., Foreign Ministry spokesperson Esmaeil Baghaei said on Thursday (June 11), Reuters reports.
He told Iranian media that Washington "tried to impose a series of unreasonable demands and requests" in the past few days.
He added that a large part of the negotiating text had been finalized but the U.S. repeatedly changed its positions during the talks.
President Donald Trump on Thursday said the United States and Iran could sign a peace deal as soon as this weekend that would reopen the Strait of Hormuz to shipping.
The deal, if confirmed, would be the most significant diplomatic breakthrough yet to end the three-month-old war, which has killed thousands of people and sent global energy prices sharply higher.
Trump has repeatedly said that any peace deal must ensure Iran cannot develop a nuclear weapon. Iran denies it is seeking such a weapon.
Iran's demands include the lifting of international sanctions, the release of billions of dollars in frozen assets and recognition of its control of the Strait of Hormuz.
