The director of the UN’s watchdog has arrived in Tehran to speak to its officials ahead of nuclear talks with the US, according to Iranian media. It comes just hours after Rafael Grossi, director general of the International Atomic Energy Agency, told French newspaper Le Monde that Iran is not far from developing a nuclear weapon. Iran has insisted its right to continue enriching uranium is non-negotiable. Subscribe here: http://bit.ly/1rbfUog For more news, analysis and features visit: www.bbc.