Top US military officers sought to reassure worried lawmakers that US forces would check Iran's "malign" influence in the Middle East should Congress greenlight the nuclear deal with Tehran.
French Foreign Minister Laurent Fabius arrived in Iran and said it was time to kickstart relations between the two countries after a nuclear deal made such a change possible.
The Iran nuclear deal is not intended to push Tehran's regime to reform but to prevent it building a bomb, Secretary of State John Kerry told skeptical US lawmakers.
Yukiya Amano, Director General of the IAEA, representatives of the six nations involved in talks to negotiate the Iranian nuclear program, including Russia’s Foreign Minister Sergei Lavrov and US Secretary of State John Kerry will be among those in attendance.
White House contender Mike Huckabee is warning that President Barack Obama is marching the Israelis to the "door of the oven" by signing off on the nuclear deal struck between Iran and six world powers.
NATO hailed the Iran nuclear deal as a "historic breakthrough" that would strengthen global security, but urged Tehran to comply with the terms of the accord.
Iranian President Hassan Rouhani said the conclusion of a nuclear deal with the major powers was "very close" after more than two weeks of intensive talks in Vienna.
Russian President Vladimir Putin said he believed global powers and Iran will "soon" reach a compromise in talks on Tehran's nuclear programme.
US Secretary of State John Kerry said he was prepared to "call an end" to nuclear talks with Iran if "tough decisions" are not made.
Iranian Foreign Minister Mohammad Javad Zarif said a nuclear deal with Western powers was "within reach" and could open the way to joint action against extremism.
The UN's atomic watchdog and Iran held "intense discussions" in Tehran about the possible military dimensions of the country's nuclear programme.
US Secretary of State John Kerry said that "it is now time" to finalise a historic nuclear deal with Iran, on a ninth day of talks in Vienna between Tehran and major powers.
A nuclear deal with Iran has "never been closer", Iranian Foreign Minister Mohammad Javad Zarif said in a message.
World powers and Tehran are close to a deal on curbing Iran's nuclear ambitions and the marathon negotiations look set to be successfully concluded "in the coming days."
US President Barack Obama warned he will "walk away" from a bad nuclear deal with Iran, as Tehran and six world powers gave themselves until July 7 to reach an agreement.
Russia's Foreign Minister Sergei Lavrov said he planned to meet his US counterpart John Kerry in Vienna where global powers are engaged in make-or-break nuclear talks with Iran.
EU foreign policy chief Federica Mogherini said all sides had shown the political will needed to strike a nuclear deal with Iran, praising the "good results" despite a day of tough talks.
US Secretary of State John Kerry was set to try and seal a historic deal with Iran that would curb its nuclear programme in exchange for relief from painful sanctions.
Days before the deadline for an Iranian nuclear deal, Israeli Prime Minister Benjamin Netanyahu told young pilots that they would be at the forefront of safeguarding the Jewish state.
Top US diplomat John Kerry warned there would be no deal with Iran if it fails to satisfy all lingering questions about its nuclear program, as he prepares to head back to tough negotiations.