A senior Iranian official told CNN the new nuclear deal proposal presented to Tehran in recent days is “incoherent and disjointed,” as sources familiar with the progress of the talks said the momentum behind negotiations to secure a new deal appears to be collapsing.

Iran is poised to reject a U.S. proposal to end a decades-old nuclear dispute, an Iranian diplomat said on Monday, dismissing it as a "non-starter" that fails to address Tehran's interests or soften Washington's stance on uranium enrichment.

The talks suggest both sides are buying time. For Iran’s leadership, an agreement could unlock billions in frozen assets and reduce sanctions pressure.

CAIRO (AP) — Iranian, Egyptian and U.N. leaders met in Cairo on Monday to discuss Iran’s nuclear program after the U.N. nuclear watchdog agency in a confidential report said Iran is further increasing its stockpile of uranium enriched to near weapons-grade levels.

Iran is currently reviewing a formal U.S. nuclear deal proposal as both sides remain deeply divided over uranium enrichment limits and sanctions relief.

Iran warned it won’t strike a nuclear deal with the US unless Washington gives assurances that any agreement will include sanctions removal.

Iran has demanded that the United States clarify exactly how sanctions will be lifted if the two sides are to reach a new agreement on Tehran’s nuclear programme. Ministry of Foreign Affairs spokesman Esmail Baghaei made the comments on Monday,

Iran is engaging on multiple diplomatic fronts as it weighs a new US proposal and braces for potential censure by the UN’s nuclear watchdog.

President Donald Trump believes his administration is “very close to a solution” on an Iran nuclear agreement and he has personally warned Israeli Prime Minister Benjamin Netanyahu not to disrupt the talks,

Iranian and U.S. delegations wrapped up a fifth round of talks in Rome on Friday and signs of some limited progress emerged in the negotiations aimed at resolving a decades-long dispute over Tehran's nuclear ambitions.

Iran is still producing nearly weapons-grade uranium amid talks with the US to wind down its nuclear program, a UN watchdog revealed Saturday, while Israel’s prime minister demanded their global allies “stop” Tehran.