Iran says it has built and will activate a third nuclear enrichment facility, ratcheting up tensions with the U.N.

Iran has warned it will ramp up its nuclear activities after the United Nations nuclear watchdog’s 35-member board of ...

The major step is the culmination of several festering stand-offs between the International Atomic Energy Agency and Iran.

Below are key passages from a four-page resolution on Iran that diplomats said the International Atomic Energy Agency's ...

Iran warned it will retaliate following a decision by the United Nations atomic watchdog to censure the Islamic Republic over ...

The U.N. nuclear watchdog's board of governors declared Iran in breach of its non-proliferation obligations on Thursday and ...

The International Atomic Energy Agency passed a resolution declaring Iran noncompliant with nonproliferation obligations, ...

The Senate and the National Assembly have adopted resolutions unanimously condemning Israel's "unjustified and illegitimate ...

Iranian officials threatened to ramp up nuclear activities after the U.N.'s nuclear watchdog organization declared Tehran not in compliance with requirements.