US secretary of state says Tehran may soon come to a point were a return to compliance with the JCPOA 'does not reproduce the benefits that that agreement achieved'

After IAEA criticism of Tehran's growing lack of cooperation, Raisi complains of organization's 'non-constructive approach' to the matter

IAEA reports activity at the Yongbyon reactor, which had been inactive since December 2018; Washington closely coordinating with partner countries, senior US official says

Foreign Ministry says research remains within Non-Proliferation Treaty and is under supervision by UN nuclear watchdog, vows work will continue

IAEA says Tehran boosting its nuclear capabilities at the Natanz plant, as talks with world powers stall

UN nuclear watchdog says Tehran produced 200g of material enriched up to 20%, in further departure from deal

Foreign ministry official in Riyadh says moves by Tehran to enrich uranium to 20% 'represent an increasing threat' to regional security and non-proliferation efforts

Washington cautions Tehran to end its nuclear 'brinkmanship'; Britain, France, Germany express 'grave concern' at latest move violating 2015 nuclear pact they are trying to save

European source says main aim of Massimo Aparo's trip will be to ensure the IAEA can still monitor the centrifuge cascades at Natanz

Tehran reportedly citing security concerns in wake of alleged Israeli strike in April; ‘They are provoking us,’ a Western diplomat says