The head of the U.N. nuclear watchdog agency says Iran's enriched uranium "is still there," as he stresses the urgency of diplomacy to avert a U.S.-Iran war.

Fresh satellite imagery is fueling new warnings that Iran is restoring key nuclear infrastructure even as negotiations with the United

The second round of talks in Geneva about Iran's nuclear program takes place as the United States ramps up its military presence in the Middle East and Iran holds large-scale maritime exercises.

US strikes on three Iranian nuclear sites in June slowed down the nuclear program, likely buried Iran’s stockpile of highly enriched uranium, and effectively paused enrichment activities. The attacks prompted Iran to reevaluate its nuclear strategy, and ...

Amid a massive U.S. military ​buildup in the Middle East that has fueled fears of a wider war, Trump said negotiations with Iran to end the tense standoff were going well but demanded that Tehran reach a "meaningful" agreement.

President Donald Trump said he is considering limited military strikes to pressure Iran into signing a new nuclear deal, but bombing the country may have the opposite effect, risking a new destabilizing conflict in the Middle East.

The U.S. and Iran are holding their second round of talks about Iran’s nuclear program Tuesday in Geneva as Iran said it will close the Strait of Hormuz for several hours as it holds live fire military exercises and the United States ramps up its military forces in the region.