UN Security Council votes to reimpose Iran nuclear sanctions, Tehran blasts ‘illegal’ move

A UN Security Council resolution aimed at halting the reimposition of sanctions on Iran over its nuclear programme failed Friday after weeks of last-ditch diplomatic talks appeared to break down. France, Germany and Britain have moved to trigger the “snapback mechanism” of the 2015 Iran nuclear deal which reimposes sanctions that were in effect before the deal. Carys Garland explains.