Ahead of resumption of talks, foreign minister says countries should avoid 'excessive demands that go beyond the terms of the nuclear agreement' from 2015

2 arrested last month are released after standoff sparked by allegations from Iran that Israel maintained a military presence in Azerbaijan, which Baku denied

After meeting with Foreign Minister Hossein Amir-Abdollahian, MP says discussions with UK, China, France, Russia and Germany to restart for the first time since June

Wrapping up trip to Beirut, Iranian foreign minister announces sides have reached 'results and agreements,' but does not offer details

Hossein Amir-Abdollahian meets top Lebanese officials, as some protesters outside carry signs saying 'Iran out'

Tensions between Tehran and Baku have been escalating as Iran's ground forces recently began maneuvers near its border; Israel is a major arms supplier of Azerbaijan

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

As country ups the ante on return to accord, Hossein Amir-Abdollahian tells NY Times the 2015 deal 'has a lot of harsh critics in Iran, but we accepted it'

Day after accusing US of sending 'contradictory messages,' Iranian Foreign Minister Hossein Amir-Abdollahian says 'the difference between Iranian and Western "soon" is a lot'

Senior Iranian official says government in Tehran completing review process of Vienna talks from previous administration, could be days or weeks