Iran requested to move talks from Turkey, Secretary of State Rubio confirms. Rubio laid out what topics needed to be discussed for a "meaningful" result.

DUBAI, Feb 4 - The U.S. and Iran are due to hold ‌talks ​in Oman on Friday after Tehran requested a change ‌of venue to limit negotiations to its nuclear programme, a regional official said, with a build-up of U.S. forces in the ​Middle East raising fears of a confrontation.

Oil prices fell on Thursday after Washington and Tehran agreed to hold talks in Oman on Friday, even as differences persist over the scope of the discussions.

Trump threatens Iran with military action while pursuing diplomatic talks. Recent drone shootdowns escalate tensions as diplomatic summit approaches.

The talks are expected to be held after the U.S. military said it shot down an Iranian drone​ and Iranian forces threatened to seize a U.S.-flagged vessel.

Oil prices fell on Thursday after the U.S. and Iran agreed to hold talks in Oman on Friday, easing concerns of a potential military conflict between them.

By Elwely Elwelly DUBAI, Feb 4 (Reuters) - Iran, which is set to resume nuclear talks with the United States on Friday in Oman, has always warned its formidable ballistic missile program - one of the biggest in the Middle East - is a red line in any negotiations.