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U.S.-Iran Nuclear Talks Stalled After New Sanctions and Military Warnings

The postponement of the fourth round of negotiations reflects heightened tensions over uranium enrichment, sanctions, and regional security concerns.

In this May 20, 2015 file photo, released by an official website of the office of the Iranian supreme leader, Gen. Hossein Salami, second right, salutes as Supreme Leader Ayatollah Ali Khamenei, right, arrives at a graduation ceremony of the Revolutionary Guard's officers in Tehran, Iran. Iran's supreme leader has appointed Salami to head to the country's powerful Revolutionary Guard, just after the U.S. designated the paramilitary force a terrorist group. Former commanders of the Revolutionary Guard Mohsen Rezaei, second left, and Yahya Rahim Safavi salute.
FILE - President Barack Obama speaks about Iran and Israeli Prime Minister Benjamin Netanyahu's speech to Congress during a meeting with Defense Secretary Ash Carter in the Oval Office of the White House in Washington, March 3, 2015. (AP Photo/Jacquelyn Martin, File)
U.S. President Donald Trump talks to Israeli Prime Minister Benjamin Netanyahu during a meeting where Trump announced nuclear talks with Iran, Washington, U.S., April 7, 2025. REUTERS/Kevin Mohatt/File Photo
A view of the reactor at Iran's nuclear power plant in Bushehr, February 25, 2009. REUTERS/Caren Firouz (IRAN)/File Photo

Overview

  • The fourth round of U.S.-Iran nuclear talks, scheduled for May 3 in Rome, has been postponed, with no new date set, according to Omani mediators.
  • The delay follows fresh U.S. sanctions targeting Iran's oil and petrochemical trade and renewed threats of military action from President Trump and Defense Secretary Pete Hegseth.
  • Iran insists on its right to uranium enrichment under the Non-Proliferation Treaty, rejecting U.S. demands for a complete halt to enrichment activities.
  • Negotiators were discussing a potential 25-year framework modeled on the 2015 JCPOA, including stricter verification measures and limits on uranium stockpiles and centrifuge types.
  • Regional tensions remain high, with Iran accusing the U.S. of provocative behavior and expressing concerns over potential Israeli military action against its nuclear facilities.