The UN Security Council is expected to vote on a resolution Friday on whether to reimpose sanctions on Iran over its nuclear program, as European officials warn Tehran that time is running out to come to a diplomatic resolution ahead of next week's annual United Nations gathering of world leaders.

The UN Security Council is expected to vote on a resolution Friday on whether to reimpose sanctions on Iran over its nuclear program, as European officials warn Tehran that time…

Iran calls action by UN Security Council 'unlawful' as nine member countries vote against nuclear sanctions relief.

Despite a flurry of diplomatic talks between the European powers and Tehran, Britain, France and Germany all insisted there had been no progress ahead of the vote in New York on…