Timeline of tensions between Iran and US as nuclear negotiators meet

An Iranian security official walks through part of the Uranium Conversion Facility outside the Iranian city of Isfahan in 2005 (Vahid Salemi/AP)

Iran and the United States held talks in the sultanate of Oman on Saturday, jump-starting negotiations over Tehran’s rapidly advancing nuclear programme.

Iran’s state-run broadcaster said US Middle East envoy Steve Witkoff and Iran’s Foreign Minister Abbas Araghchi “briefly spoke” together — the first time the two nations have done that since the Obama administration.