Iran has reportedly closed the Strait of Hormuz in response to a joint attack by the United States and Israel.
Oil majors and trading houses have suspended crude oil, fuel, and liquefied natural gas shipments, with satellite images showing vessels accumulating near ports.
Iran's Revolutionary Guards issued orders for no passage through the Strait, though the UK Navy stated these orders are not legally binding and advised caution.
The US Navy warned against navigation in the area, and Greece's shipping ministry advised vessels to avoid the Persian Gulf, Gulf of Oman, and the Strait of Hormuz.
The Strait of Hormuz is a critical chokepoint for 20% of global oil and large volumes of liquefied natural gas, with disruptions already affecting LNG tankers and posing risks to Qatari exports.
