Rafael Grossi, the head of the International Atomic Energy Agency (IAEA), is in Tehran on Thursday to continue negotiations ...

The UN nuclear chief toured two Iranian uranium enrichment plants that have been the focus of Western concern on Friday after ...

Israel's airstrikes on Iran last month destroyed a top-secret Iranian nuclear research facility at Parchin, according to ...

The head of the U.N. nuclear watchdog visited two Iranian nuclear sites on Friday as part of a visit to Iran, ahead of an ...

A secret Iranian nuclear weapons research facility was destroyed in Israel’s attack on the Islamic Republic last month, ...

Rafael Grossi, head of the International Atomic Energy Agency, the U.N. nuclear watchdog, says the window of opportunity to ...

Iran insisted it remains open to negotiation for safeguards on its nuclear program in a series of meetings with the United ...

Iran has long accused Israel of targeting its nuclear program through covert operations. Israeli officials, in turn, have ...

IAEA chief Rafael Grossi meets with Iranian Foreign Minister Abbas Araghchi in Tehran for nuclear negotiations.

The head of the International Atomic Energy Agency is warning that the “space for negotiation and diplomacy ... is getting ...

Rafael Mariano Grossi of the IAEA was visiting Tehran in an effort to restore his inspectors' access to Iran's program and ...