U.S. Marines boarded a commercial ship in the Arabian Sea suspecting it was headed to Iran in violation of the U.S.-imposed blockade of the Strait of Hormuz.

The U.S. Central Command said that the commercial ship M/V Blue Star III was searched and released after ascertaining that it was not headed to an Iranian port.

U.S. Navy intercepts Iran-linked vessel in Arabian Sea

"Earlier today in the Arabian Sea, U.S. Marines from the 31st Marine Expeditionary Unit boarded M/V Blue Star III, a commercial ship suspected of attempting to transit to Iran in violation of the U.S. blockade of Iranian ports," CENTCOM wrote on X on Tuesday (April 28, 2026).

CENTCOM said U.S. forces released the vessel after conducting a search and confirming the ship's voyage would not include an Iranian port call.