Nuclear talks between the US and Iran are facing fresh uncertainty after a meeting set to take place this weekend was postponed and US officials said they had never agreed to join the latest round in the first place.

A fourth round of Iran-US talks over Tehran's nuclear programme has been postponed. The foreign minister of Oman, facilitating negotiations, said Saturday's talks in Rome were being rescheduled because of logistical reasons,

Planned negotiations between Iran and the United States this weekend over Tehran’s rapidly advancing nuclear program have been postponed, Oman announced Thursday. A message online from Omani Foreign Minister Badr al-Busaidi made the announcement in a post on the social platform X.