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U.S.-Iran Nuclear Talks Postponed Indefinitely Amid Escalating Tensions

New U.S. sanctions on Iranian oil, military threats, and a deadly port explosion in Iran deepen mistrust and stall diplomatic efforts.

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 indirect nuclear negotiations, originally scheduled for May 3 in Rome, has been postponed indefinitely without a new date set.
  • Omani mediators cited logistical reasons for the delay, while Iran attributed the postponement to the latest U.S. sanctions targeting its oil and petrochemical sectors.
  • President Trump announced secondary sanctions on any country or individual purchasing Iranian oil, intensifying economic pressure on Tehran.
  • Over 1,000 U.S. airstrikes on Houthi positions in Yemen and Defense Secretary Pete Hegseth's warnings of military action further complicate the diplomatic landscape.
  • An April 26 explosion at Iran's Bandar Abbas port, killing at least 70 people, remains under investigation, with preliminary reports pointing to rocket fuel chemical containers as the source.