On Tuesday, May 19, 2026, U.S. forces seized an Iranian vessel in the Indian Ocean. The vessel was the Very Large Crude Carrier (VLCC) Skywave (IMO: 9328716). The story was originally reported by The Wall Street Journal, citing three U.S. officials. Ship-tracking data showed that the Skywave was sailing west of Malaysia on Tuesday after exiting the Malacca Strait. The Wall Street Journal reported that the ship was boarded overnight while it was halfway between Malaysia and Sri Lanka. The U.S. has not yet confirmed the seizure.
The ship is currently flagged in Botswana, a known cover for shadow tankers. As a landlocked country, Botswana has no national maritime or ship registry. Other maritime tracking sites list it as flagged in Comoros–another common shadow-fleet jurisdiction–providing probable evidence that the vessel routinely changes its flag. The ship changed its name in 2025 after it was sanctioned by the U.S. At that time, when it was called the Blue Gulf, it was registered in Palau.
Lloyd’s List Intelligence reports that the ship loaded more than a million barrels of crude oil at Kharg Island in February before heading to Asian waters. It is not publicly known whether the ship was able to offload its cargo in Asian ports.
This is the third time the U.S. has seized an Iranian tanker, following the seizures of the Majestic X and Tifani in April, both in the Indian Ocean. These operations form part of a blockade of Iranian shipping into the Persian Gulf as well as a broader crackdown on Iranian shipping worldwide. Iran’s tanker fleet generates revenue for the regime, which is then used to fund its military and proxy forces. The seizures tie into the wider U.S.–Israeli Operation Epic Fury and the effort to dismantle Iran’s nuclear program, among other objectives. Iran has denounced the actions as “armed piracy” and a violation of the fragile ceasefire established in April.
The Department of Justice and the Office of Foreign Assets Control (OFAC) also announced today that they are sanctioning an additional 19 tankers linked to the Iranian oil trade. The move is part of a campaign the U.S. calls “Economic Fury.”
The US action is a blockade of Iran’s ports and coastline, not a blockade of the Strait of Hormuz. Enforcement will occur inside Iran’s territorial seas and in international waters. In addition to this blockade, the Joint Force, through operations and activities in other areas of responsibility, like the Pacific Area of Responsibility under the command of Admiral Paparo, will actively pursue any Iranian flagged vessel or any vessel attempting to provide material support to Iran….This includes Dark Fleet vessels carrying Iranian oil. As most of you know, Dark Fleet vessels are those illicit or illegal ships evading international regulations, sanctions or insurance requirements. More than 10,000 sailors, Marines and Airmen, over a dozen ships and dozens of aircraft are executing this mission.
Chairman of the Joint Chiefs of Staff General Dan Caine,
Background
Tensions between the United States and Iran have escalated over Tehran’s nuclear program and its support for proxy militias across the Middle East. Operation Epic Fury, a coordinated U.S.–Israeli campaign launched earlier this year, combines naval interdictions, expanded economic sanctions, and intelligence operations to disrupt Iran’s shadow tanker fleet and starve the regime of the oil revenue that funds its military and destabilizing activities. The fragile ceasefire negotiated in April 2026 offered only a temporary pause in hostilities; both sides continue to accuse each other of violations, keeping the region on edge as the U.S. presses forward with its goal of preventing Iran from achieving nuclear breakout capability.
Global Conflict Reporting 
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