AFP, TEHRAN Iran yesterday said it was closing the Strait of Hormuz, and launched missiles and drones at Gulf neighbors after the US carried out a new round of strikes as their conflict escalated.The latest exchange of fire was sparked by another Iranian attack on a commercial ship in the strait, whose crew were forced to abandon the vessel after it went up in flames.Mediators have been trying to salvage a diplomatic solution after US President Donald Trump this week declared a ceasefire over. Vessels sail in the Strait of Hormuz, as seen from Musandam, Oman, on Wednesday last week. Photo: Reuters “Following this incident... the Strait of Hormuz will be closed until further notice and until the end of American interventions in this region,” state news agency IRNA quoted the Iranian Revolut