Iran says it has begun using new advanced centrifuges to enrich uranium - the latest step in reducing its commitments under a 2015 nuclear deal with world powers, BBC reports.
Forty such centrifuges were now operational, said nuclear agency spokesman Behruz Kamalvandi.
Enriched uranium can be used to make reactor fuel but also nuclear weapons.
Iran stopped abiding by two commitments in July in response to sanctions the US reinstated when it abandoned the deal.
