The fourth round had been postponed after being scheduled to be held in Rome on May 3, which Oman attributed to "logistical reasons."
The agency quoted an unnamed member of the Iranian delegation as saying, "Based on the Omani foreign minister's proposal to hold the fourth round of talks on Sunday, Tehran announced its approval."
He added, "An agreement was reached on the fourth round of Iranian-American talks in Oman."
In this context, an informed source said on Friday that US President Donald Trump's envoy to the Middle East, Steve Witkoff, will travel to the Sultanate of Oman on Sunday to hold a round of talks.
US President Donald Trump, who withdrew his country from the 2015 nuclear agreement between Iran and world powers, had threatened to bomb Iran if his administration did not reach an agreement to resolve the long-running conflict.
Western countries say that Iran's nuclear program aims to produce nuclear weapons, while Iran insists that it is for purely civilian purposes.
