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.

Envoys from Iran and the United States have arrived in Oman ahead of the first talks over Tehran’s rapidly advancing nuclear program since President Donald Trump returned to the White House

The United States and Iran on Saturday began "indirect" negotiations on a new nuclear deal in the Gulf Arab nation of Oman and plan to meet again in seven days.