DUBAI - Iran's Foreign Minister Mohammad Javad Zarif said nuclear talks between Iran and the P5+1 group of countries would resume on April 21, the semi-official Tasnim news agency reported on Tuesday. Iran and the P5+1 group - the United States, Britain, France, Germany, Russia and China - reached a preliminary deal on Iran's disputed nuclear programme this month and are aiming to reach a final deal by the end of June. 'Zarif... said the next round of nuclear talks between Iran and the 5+1 group would begin next Tuesday at the level of deputies and experts,' Tasnim said.