EU says it will wait for UN confirmation on Tehran's announcement of increased production, cautions that Europe's commitment to 2015 pact depends on Iranian compliance

Tehran's nuclear chief says domestically made centrifuge in development is 50 times faster than those allowed under 2015 accord

Nuclear deal critics slam decision to continue allowing foreign companies to work at Iranian civil nuclear facilities without penalties

Foreign ministry says it's 'ready to maintain and expand interaction and cooperation' with the International Atomic Energy Agency after Rafael Grossi takes the helm

Diplomat elected to succeed late IAEA director-general Yukiya Amano has vowed to be 'firm but very fair' in dealing with Iran

Rafael Grossi reportedly secures backing from US, Brazil and 18 others, but still shy 3 votes; agency, tasked with overseeing Iran nuclear deal, to vote this week on new leader

Tehran says measure aimed at pressuring European powers to find way around crippling US sanctions imposed after Trump pulled out of nuke deal

Sources say administration concerned China shipping companies are turning off tracking beacons on vessels to conceal sanction-busting crude cargoes

As Iranians breach nuclear deal in protest of US sanctions, British embassy says 'we are upholding our obligations to cooperate' with Tehran on modernizing Arak facility

Under terms of 2015 nuclear deal, Tehran had committed to not using this array until late 2023; enrichment now at pre-deal daily capacity, country's nuclear chief says