Iran nuclear talks on hold over last-minute Russian demands

Moscow is insisting that Washington pledge not to sanction trade between it and Tehran over Ukraine

Talks on the revival of the Iran nuclear deal have become a casualty of the war in Ukraine after an indefinite pause was announced over last-minute Russian demands.

An agreement on the nuclear deal to bring the US and Iran back into compliance would have led to a swathe of US sanctions on Iran being lifted, including Iranian crude oil exports and petrochemicals, in return for limits on its nuclear activity.