CENTCOM releases video of a U.S. Navy warship broadcasting a formal blockade notice to all maritime traffic on Channel 16

"The U.S. has announced a formal blockade of Iranian ports and coastal areas. This is a legal action. All vessels are advised to immediately return to port if leaving and discontinue transit to Iran if that is your next port of call. Do not attempt to breach the blockade. Vessels will be boarded for interdiction and seizure transiting to or from an Iranian port. Turn around or prepare to be boarded. If you do not comply with this blockade, we will use force. The whole of the United States Navy is ready to force compliance. Out."

CENTCOM releases video of a U.S. Navy warship broadcasting a formal blockade notice to all maritime traffic on Channel 16, the international hailing frequency used by every ship at sea:

"The U.S. has announced a formal blockade of Iranian ports and coastal areas. This is a legal… pic.twitter.com/rOOZMdSpH6

— Open Source Intel (@Osint613)April 15, 2026

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