Talks between Iran and the United States over Tehran’s rapidly advancing nuclear program appeared ready to leave the Middle East on Monday, as an Italian source and others said the next round of negotiations would take place in Rome.

Iran and the U.S. said they held "positive" and "constructive" talks in Oman on Saturday and agreed to reconvene next week in a dialogue meant to address Tehran's escalating nuclear programme, with President Donald Trump threatening military action if there is no deal.