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Vessel Compliance Summary
Reported compliance of vessels during the initial blockade phase.
Primary Sources
Iran-Linked Ships Take New Path To Trickle Into the Persian Gulf
At least two US-sanctioned, Iran-linked vessels made their way through the Strait of Hormuz and into the Persian Gulf on Thursday, taking what may be a new route from the United Arab Emirates even ...
How a US Blockade on Iran Has Sanctioned Ships Turning Around
Some Iran-linked or sanctioned vessels that have left the Persian Gulf through the Strait of Hormuz have stopped or turned aroundAltaf QadriFILE - Oil tankers and cargo ships line up in the Strait of Hormuz as seen from Khor Fakkan, United Arab Emirates, Wednesday, March 11, 2026. (AP Photo/Altaf Qadri,File)FRANKFURT, Germany (AP) — The U.S. Navy's sea blockade against Iran appears to be working.Iran-linked or sanctioned vessels that have left the Persian Gulf through the Strait of Hormuz have stopped or turned around, shipping data firms say. They appear to have jammed or faked their locations in some instances, complicating an uncertain and risky shipping situation.The blockade that started Monday “has been fully implemented,” said Adm. Brad Cooper, head of U.S. Central Command. “U.S. forces have completely halted economic trade going in and out of Iran by sea.” The action could put serious pressure on the Iranian economy, while Tehran's earlier cutoff of the waterway crucial to oil and gas supplies has sent energy prices higher during the war with the U.S. and Israel.Here are key things to know about the blockade and the situation at the Strait of Hormuz: How the US Navy is enforcing the blockade The blockade is being enforced “impartially against all vessels of all nations entering or leaving coastal areas or ports in Iran,” U.S. Central Command said. Vessels avoiding Iranian ports are not affected.The military set up the blockade in the Gulf of Oman beyond the Strait of Hormuz, a U.S. official said. The official, who spoke on condition of anonymity to discuss sensitive military operations, said the strategy is to observe vessels subject to the blockade leave Iranian facilities and clear the strait before intercepting them and forcing them to turn around.The official said that the military relies on more than just automated tracking beacons that all merchant ships are required to carry, called AIS, to determine merchant ships were coming from a port in Iran but wouldn’t go into more detail citing the need for operational security. Ships are turning around as traffic adjusts U.S. Central Command said Wednesday that no vessels have made it past its forces during the first 48 hours of the blockade.It noted that 10 vessels have complied with directions to turn around and return toward an Iranian port or Iran’s coastal area. Navy warships are telling merchant ships that they are ready to board them and use force to compel compliance.On Tuesday, the first ...
Two Iran-Linked Ships Passed Through Strait of Hormuz Ahead of U.S ...
Hours before a U.S. naval blockade of ships from Iranian ports took effect on Monday, two Iranian-linked ships exited the Persian Gulf via the Strait of Hormuz, according to Kpler, a global ship ...
UPDATED: Two U.S. Warships Sail Through Strait of Hormuz to Establish ...
This post has been updated with additional information on the transit and the announcement of a U.S. blockade of Iranian merchant ships. Two Navy guided-missile destroyers entered the Strait of ...
