US measures on all trade of Iranian iron, steel, aluminum and copper come hours after Islamic Republic partially left nuclear deal, threatened to step up uranium enrichment

Announcement by Trump aide comes hours after Tehran announced it was setting up possible return to high-level uranium enrichment

Prime minister gives first Israeli response to announcement by Iran's Rouhani that Tehran will keep excess uranium, resume high-level enrichment if no new terms are set

Tehran informs five remaining partners to 2015 nuclear deal of its response to US pullout last year, Zarif says country remaining in pact

A look at the IAEA's work in monitoring implementation of Joint Comprehensive Plan of Action -- the deal, which Trump quit and Netanyahu opposes, aimed at keeping Tehran from nukes

Paris's envoy in Washington, Gerard Araud, tweeted that 'sanctions could be reimposed' on Tehran