Iranian Foreign Minister Mohammad Javad Zarif

US Secretary of State Rex Tillerson joined Iranian Foreign Minister Mohammad Javad Zarif at the United Nations on Wednesday for a first meeting with partners backing the Iran nuclear deal.

European Union foreign policy chief Federica Mogherini is chairing the closed-door meeting to discuss the 2015 deal that President Donald Trump has threatened to scrap unless it is re-opened for negotiations.

source: AFP