Iran’s president-elect has welcomed the negotiations with world powers aimed at reviving a 2015 nuclear deal, but said they must guarantee national interests. At his first news conference since his victory in Friday’s election, Ebrahim Raisi promised he would not allow the talks in Vienna to be dragged out. He also insisted that Iran’s ballistic missile programme was “not negotiable”. The nuclear deal has been close to collapse since the US abandoned it and reinstated sanctions three years ago. Iran retaliated by gradually breaching its commitments under the accord that were designed to minimise the risk of it developing a nuclear weapon.