Iran shuts the Strait of Hormuz again as US continues blockade

Iran says it has shut the Strait of Hormuz once more after the US refused to lift what Tehran describes as a naval blockade of its ports.It comes as Donald Trump warned he could 'start dropping bombs again' if the fragile ceasefire collapses. State broadcaster IRIB cited Iran's Central Military Headquarters as saying the waterway had been closed again after Washington 'did not fulfil its obligations', adding that passage would now require Iranian approval.