Foreign ministers want Iran to respect the terms of the deal, aim to drum up further support for bloc's barter-type system to trade with Tehran and get around US sanctions

European signatories to the 2015 accord call for end to the escalating tensions over Tehran's nuclear program, say pact's survival contingent on 'full compliance'

Iran continues to threaten UK over 'mean and wrong' seizure of ship said to be carrying crude to Syria in violation of EU sanctions, says London to blame for insecurity in region

Official to try to deescalate rising tensions after Macron and Rouhani agreed on July 15 deadline to solve current impasse

French president Macron tells Iranian counterpart by phone that he is concerned about weakening of nuclear deal; Tehran says it will up enrichment level

President lashes out at Tehran after Rouhani vows to step up uranium enrichment if there is no new nuclear deal

As accord teeters, Iranian president says Tehran will move to refine radioactive element beyond 2015 deal's 3.67% cap

Meeting with world leaders will give Trump chance to articulate strategy for containing Iran to skeptical international community

President tells French counterpart Macron that Tehran 'has no interest' in ratcheting up spat with Washington, but will give a 'decisive response' if airspace violated again

Iranian president denounces sanctions against foreign minister Zarif; military spokesman says Washington ruptured path of diplomacy by also targeting supreme leader Khamenei