After a round of indirect talks with Trump's envoys in Oman, Iran's top diplomat says the country will keep negotiating, but stresses a lack of trust.

Repairs at key missile sites began soon after they were hit by Israeli and U.S. strikes last year, but work at Iran’s nuclear facilities has been slower.

Satellite images reveal activity at two Iranian nuclear sites, suggesting that Tehran may be obscuring its efforts to salvage any materials remaining there.

President Trump says he’ll act against Iran “with speed and violence,” if he doesn’t get a deal to rein in Iran’s nuclear program.Host Mary Louise Kelly talks with National Security Corresponent Greg Myre and Science and Security Correspondent Geoff Brumfiel about how,

Middle Eastern diplomats see a chance for progress on Iran’s nuclear program, but they are pessimistic about other U.S. demands.

The talks between Iran and US are still set to focus on Iran's nuclear program and capabilities, NYT noted, citing three Iranian officials and one Arab official. Iran has agreed to discuss its ballistic missile program and its use of proxy terror groups in talks with the United States slated for Friday morning,

Trump issued a new warning to Iran and its supreme leader, Ayatollah Ali Khamenei, ahead of expected talks over Tehran's nuclear program.