Secretary of State Marco Rubio warned that the United States faces a critical moment with Iran to curb the Islamic Republic’s efforts to develop a nuclear weapon and limit its uranium enrichment.

Iran’s foreign minister said Sunday that regardless of whether a nuclear deal is reached with the U.S., enrichment will continue. Foreign Minister Seyed Abbas Araghchi addressed negotiations ...

Iran's foreign minister described nuclear talks with the United States as "complicated", following the conclusion of a fifth round of discussions in Rome on Friday. The talks, which began in April ...

May 14 (UPI) --The United States has imposed additional Iran-related sanctions, as the Trump administration negotiates with Tehran on a new nuclear weapons deal. The sanctions announced Tuesday by ...

The head of the United Nations’ atomic watchdog said Wednesday that “the jury is still out” on negotiations between Iran and the U.S. over Tehran’s rapidly advancing nuclear program ...

The United States and Iran have held a series of "indirect" nuclear talks. LONDON -- Iranian leader Ayatollah Ali Khamenei expressed doubt about his country's nuclear negotiations with the United ...