Negotiations resume in Vienna, with Iranian envoy saying the Biden administration's offer to lift most sanctions isn't 'enough' for Tehran to reverse breaches of 2015 accord

Swiss Foreign Ministry in Bern says employee 'died in a fatal incident'; embassy represents US interests in Iran

US officials play down rumors of progress toward bringing Tehran back into compliance with 2015 pact, but Iranian media claims agreement has been reached

American vessel opened fire after three Revolutionary Guards fast inshore attack craft come within 60 yards, refuse to heed warnings; incident occurred in international waters

Former US secretary of state cites Israeli minister's 2018 speech mentioning raids, and State Department notes generally that such operations were public knowledge

Diplomat summarizes 2 weeks of deliberations 'with satisfaction' as negotiations enter drafting stage; Israeli officials said concerned US will rush to rejoin

However, US president pleased that Tehran still taking part in Vienna talks aimed at finding a way back to nuclear deal

But as parties meet in Vienna, EU diplomat says Iranian move to further enrich uranium 'puts pressure on everyone'

Britain, France, and Germany say move is 'a serious development' amid ongoing negotiations to revive 2015 nuclear deal

Iranian envoy to UN atomic agency says Islamic Republic will start enriching at previously unseen levels by next week