Ursula von der Leyen: 'I welcome the progress towards an agreement between the US and Iran.We need a deal that truly de-escalates the conflict, reopens the Strait of Hormuz and guarantees toll free full freedom of navigation.Iran must not be allowed to develop a nuclear weapon.It must also end its destabilising actions in the region, directly or through proxies, as well as its unjustified and repeated attacks on its neighbours.'