That's what the head of the United Nations' nuclear watchdog said Thursday while on a visit to the Islamic Republic.

Finland's customs authority said on Thursday it was investigating an attempted breach of Russian sanctions in a case involving sensitive documents related to the construction of a nuclear power plant.

But Iran’s foreign minister said Tehran planned to participate “calmly and coolly” in the negotiations. Both sides will meet ...

As Iran’s nuclear program advances, the critical question of whether Tehran would need to conduct nuclear tests to ensure its weapons are effective looms over the consciousness of the international ...

DUBAI, United Arab Emirates — Iran confirmed Wednesday that the next round of nuclear talks with the United States this ...

Iranian Foreign Minister Abbas Araghchi, says Tehran's right to uranium enrichment is non-negotiable as Washington demands ...

A day after he said Iran could continue low-level enrichment, President Trump’s envoy appeared to backtrack..

Iran has faced suspicion for decades over its nuclear ambitions and whether it’s developing the capability to fire an atomic ...

Talks between Iran and the United States over Tehran’s rapidly advancing nuclear program had appeared ready to leave the Middle East, as an Italian source and others said the next round of negotiation ...

President Donald Trump complained Monday about the pace of nuclear talks between the United States and Iran as the two ...

Envoys from Iran and the United States began negotiations on Saturday in Oman over Tehran's nuclear programme. Iran has said ...