The two sides were scheduled to meet for a sixth round of negotiations on Sunday. Oman, which was set to host the talks, said ...

The latest U.S.-Iran talks on Tehran's rapidly advancing nuclear program will not take place Sunday, mediator Oman said ...

The latest round of U.S.-Iran nuclear talks scheduled for Sunday in Muscat will not take place, Omani Foreign Minister Badr ...

Experts suggest the U.S. has a strategic opportunity to leverage Iran's weakened position for a nuclear deal after Israel's ...

Iran said the dialogue with the U.S. over Tehran's nuclear programme is "meaningless" after Israel's biggest-ever military ...

There will be no nuclear talks with Iran on Sunday, a senior U.S. administration official says, adding Washington still hopes ...

Tehran is undecided on whether it will attend the next round of negotiations with the U.S., an Iranian Foreign Ministry ...

Sirens sounded in Israel as Iran launched dozens of ballistic missiles in retaliation for Israel's strikes on its nuclear ...

Follow the latest news after Israel launched strikes at Iran, a dramatic escalation in long-running tensions between the two ...

The U.S. says it wasn't involved in the strikes on Iran, but three American officials told NBC News the U.S. is assisting in ...