Less than three hours until US due to start blockade - what is the latest?

Around 20% of the world's oil and liquified natural gas pass through the Strait of Hormuz (file photo) Looming Iranian ports blockade The US has threatened to impose a blockade of Iranian ports, set to begin in the next few hours at 10:00 ET (14:00 GMT / 15:00 BST). US Central Command (Centcom) says the blockade will apply to vessels from all nations entering or leaving Iranian ports - both in Iran and those on the Gulf and Gulf of Oman. However, the US says it will not stop "freedom of nav