U.N. inspectors monitoring Iran's Fordow nuclear site confronted a major gap in their knowledge last year as they watched ...

Iran's stance directly clashes with U.S. President Donald Trump 's position that Iran must halt all enrichment amid ...

The outline of the U.S. offer to Iran in their high-stakes negotiations over Tehran's nuclear program is starting to become ...

The negotiations have been framed by Trump as both countries’ best chance to avoid direct military conflict over Iran’s ...

An Iranian diplomat dismissed the proposal as a "non-starter" that fails to address Tehran's interests or soften Washington's ...

An Axios report revealed the United States will allow Iran to continue limited uranium enrichement under certain conditions ...

The preliminary U.S. proposal came as a confidential U.N. report described an Iranian initiative that had multiplied Tehran’s ...

Iran lashes out at Austria after a report claims Tehran has an advanced nuclear weapons program, sparking diplomatic tensions ...

The U.N. nuclear watchdog says Iran has further increased its stockpile of uranium enriched to near weapons-grade levels.

A classified International Atomic Energy Agency report found Iran, since February, produced 300 pounds of uranium enriched to ...

Iran has increased production of highly enriched uranium, according to the United Nations nuclear watchdog, as the nation ...