Moscow said to offer some sanctions relief in return for nuclear program limits; Biden administration said to have knowledge of proposal, which would likely need US Congress review

Building second, third units at Bushehr would be in accordance with Islamic Republic's plans to produce at least 10,000 megawatts of electricity using nuclear energy, Tehran says

Revolutionary Guard will also participate in exercise that will include night fighting, rescue operations and firefighting drills

Russian president praises 'close cooperation' as chief negotiators return to Vienna after consultations; Iran's leader says 'no limits for expanding ties'

Kremlin says leaders will discuss 'whole range of issues of bilateral cooperation,' including 2015 deal; visit is first by an Iranian president to Russia since 2017

Iranian foreign minister meets with Russian counterpart, says 'finalizing consultations' for further negotiations; Russia's top diplomat calls on US to resume 'legal obligations'

Russian, UK envoys to Tehran reenact historic meeting to commemorate allies' fight against Nazis; outgoing FM Zarif calls it 'inappropriate' due to UK-Soviet invasion during war

Gaza-ruling terror group hopes the Iranian president-elect will continue Tehran's 'honorable stances in solidarity with Palestine'; Islamic Jihad also sends well-wishes

Israeli officials express concern following report of sale in Washington Post, amid fears move will dramatically enhance Tehran's ability to track Israeli bases and targets

Officials say satellite would be major upgrade to Iranian capabilities, able to photograph Israeli and US bases in Mideast whenever it wanted and share data with terror groups