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 ...

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

A senior Iranian official told CNN the new nuclear deal proposal presented to Tehran in recent days is “incoherent and ...

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

Iran's foreign ministry and the Iranian nuclear agency rejected the report, calling it "politically motivated" in a joint ...

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

Iranian, Egyptian and U.N. leaders have met to discuss Iran’s nuclear program after the U.N. nuclear watchdog agency said ...

President Trump is calling for Iran to stop enriching uranium as part of a U.S. proposal on the country's nuclear program.

Two new IAEA reports document Tehran’s years of deception.