Moscow says Washington's 'theatrics do not correspond to reality,' as the White House insists measures against Tehran have snapped back -- in defiance of the rest of the world

Ron Dermer, ahead of his departure, says highlight of 7-year tenure in Washington was PM's Congressional address bashing Obama-brokered Iran deal

Security Council has clearly said that it cannot proceed with the reimposition of sanctions due to US exit from nuclear deal

Rafael Grossi, head of International Atomic Energy Agency, says Tehran's granting inspectors access to two disputed sites could build cooperation

Opening week arguments to focus on whether UN's top justice forum has jurisdiction to rule on Tehran's claim against Washington; final judgement will take years

Tehran announced resumption of enrichment at Fordo site last November in a further step away from 2015 nuclear accord abandoned by Washington in May 2018

Nazanin Zaghari-Ratcliffe is being 'treated like a bargaining chip,' says British MP; UK-Iran citizen has spent over 4 years in jail or under house arrest

Tehran's nuclear chief says work has already begun on facility to replace Natanz, damaged in mysterious July 2 explosion

UN inspectors gain access to one of two sites where undeclared nuclear activity may have taken place in the early 2000s; second site to be inspected later this month

Representatives meeting in Vienna vow to preserve accord; Russia takes swipe at US for trying to dictate terms despite withdrawing from deal in 2018