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 ...

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 ...

Iran's president said nuclear achievements cannot not be compromised and the Islamic Republic does not seek weapons ...

The United States has just announced a new round of sanctions targeting Iran’s nuclear program. These sanctions focus on five companies and one person, all based in Iran, that are believed to be ...

Iran and the United States will hold talks in the sultanate of Oman on Saturday in an attempt to jump-start negotiations over ...

Iran and the U.S. will hold talks on Saturday on Iran's nuclear programme, with U.S. President Donald Trump having threatened military action if they cannot agree a deal.