The US Central Command said it will begin implementing a blockade of all maritime traffic entering and exiting Iranian ports on April 13 at 10 a.m. ET (1400 GMT), after President Donald Trump said the US Navy would start blockading the Strait of Hormuz.
"The blockade will be enforced impartially against vessels of all nations entering or departing Iranian ports and coastal areas, including all Iranian ports on the Arabian Gulf and Gulf of Oman," CENTCOM wrote in a statement on social media.
"CENTCOM forces will not impede freedom of navigation for vessels transiting the Strait of Hormuz to and from non-Iranian ports," it added.
Additional information will be provided to commercial mariners through a formal notice before the blockade starts, CENTCOM said.
— U.S. Central Command (@CENTCOM) April 12, 2026

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