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,

Iran has dismissed the recent sanctions as “unlawful and inhumane”, with Foreign Ministry spokesperson Esmail Baghaei calling them violations of international law and human rights. Baghaei also accused the US of inconsistent and provocative behaviour that undermines progress at the negotiating table.

Leaders from the United States and Iran painted a positive but cautious picture of talks between the nations over Iran’s nuclear program Saturday, after the third phase of the discussions wrapped up in Oman.