Iran, US hold pivotal talks in Oman as confrontation looms

Iran and the United States started high-stakes negotiations via Omani mediation on Friday to try to overcome sharp differences over Tehran’s nuclear programme, while a dispute over widening the agenda risked derailing diplomacy and triggering another Middle East conflict.

An Iranian official told Reuters the talks had not officially started, although Iran’s demands had been conveyed to the U.S. via Oman. The official said indirect negotiations “possibly” would begin after a meeting between...