Material can be used as component in nuclear weapons; European foreign ministers have warned move has 'grave military implications'

Upping pressure, Iran's foreign minister says Washington may lose opportunity to turn the page with Tehran

Military estimates Tehran is at least two years from an atomic bomb from the moment it decides to 'break out,' says Islamic Republic is desperate for a deal with US

In rare comments admitting Tehran is considering developing nukes, official claims it would be the West's fault for making moves to 'corner' his country

Iranian intelligence minister says 'first preparations' in killing were carried out by member of armed services

Macron had said he was ready to be an 'honest broker' in talks, but Tehran says there's 'no need for a mediator'

Islamic Republic reiterates demand US first remove measures; Israel's US ambassador says president's statement a 'positive sign'

Supreme leader claims Tehran abided by its commitments while US, France, Germany and the United Kingdom reneged

Citing parliamentary legislation and upcoming elections, Zarif says 'time is running out' for US return to 2015 agreement

London says countries hold 'shared concerns' over Tehran; Biden convenes NSC; top diplomats also discuss China, Russia, Myanmar, climate change, pandemic