US President Donald Trump has demanded changes to a proposed agreement with Iran , triggering a fresh round of negotiations and potentially delaying a final deal by several days, according to US media. The New York Times reported on Saturday that Trump had sent Tehran a revised proposal containing stricter conditions after expressing frustration with what he sees as delays in Iran's response to previous US offers.
According to the newspaper, the revised framework was sent back to Iran for review after being amended by Trump.
The report said the proposal had been developed with the involvement of mediators, including Pakistan, and had already been forwarded to Iran's Supreme Leader, Mojtaba Khamenei, for approval.
The White House confirmed on Friday that Trump had held a two-hour meeting to discuss a possible agreement with Iran but left without making a final decision, despite previously indicating that he intended to settle the matter during the meeting.
Following the talks, the White House said Trump was seeking an agreement with Iran that would be "good only for the United States" and would conform to Washington's "red lines".
Separately, Axios reported on Sunday, citing a senior administration official and another source familiar with the negotiations, that Trump requested several changes to a draft agreement negotiated by his envoys and Iranian officials.
According to the outlet, the proposed changes focus primarily on how Iran's stockpile of enriched uranium would be handled and the timetable for implementing the agreement.
Under the current memorandum of understanding, Iran would commit not to pursuing a nuclear weapon while both sides would have 60 days to negotiate details relating to Iran's nuclear programme and the easing of US sanctions.
Those discussions would include the future of Iran's enriched uranium stockpile and permissible levels of uranium enrichment. Axios also reported that Trump wants to revisit provisions related to the reopening of the Strait of Hormuz, one of the world's most important shipping routes for oil and gas exports.
The report said US officials had informed Trump that Iran would likely require around three days to respond to the revised proposal because of difficulties communicating within the Iranian leadership.
A senior US administration official told Axios : "They're literally in caves and they don't use email."
"A deal will get done eventually. We're prepared to wait until the president gets what he's asking for. It could take a week, less, or longer. We hope to get something by the end of the week," the official added.