Iran responded with strikes on US military bases and Israeli targets in the region.A ceasefire came into effect on 8 April, and there has been one round of direct peace talks in Islamabad since, with the two countries deadlocked.Iran has maintained a stranglehold on the Strait of Hormuz since the war began, choking off major flows of oil, gas and fertiliser to the world economy, while the US has imposed a counter-blockade on Iranian ports.As of 29 April, more than 900 commercial vessels were located in the Gulf, according to maritime intelligence firm AXSMarine Iranian officials have asserted that they control the strait and that ships not affiliated with the US or Israel can pass if they pay a toll.Iran denied an attack, the semi-official Iranian outlets Fars and Tabnak reported, and said a passing ship had been stopped for a documents check as part of monitoring.The monitor said it was the first reported attack in the area since 22 April