Iran's Islamic Revolutionary Guard Corps captured the oil tanker Ocean Koi during a special operation in the Gulf of Oman on April 23, 2026 [1].
These opposing naval actions signal a sharp escalation in maritime tensions near the Strait of Hormuz, a critical chokepoint for global energy supplies. The simultaneous maneuvers by Tehran and Washington increase the risk of direct military confrontation in one of the world's most volatile shipping lanes.
An IRGC spokesperson said, "We have captured the vessel Ocean Koi in a special operation" [1]. Iranian officials said the seizure was intended to prevent oil shipments to Israel, and to assert control over regional maritime traffic [1]. Video released by Iran showed armed commandos seizing cargo vessels [3].
While Iran reported the seizure of one oil tanker [1], other reports indicated the capture of two foreign commercial vessels [2]. The incidents occurred in the Gulf of Oman and the nearby Strait of Hormuz [1, 2].
Simultaneously, the U.S. military acted to block Iranian-flagged tankers amid the rising tensions [2]. U.S. Central Command said, "Our forces have disabled two tankers attempting to enter Iranian ports" [2].
The U.S. military reported the number of disabled vessels as two [2]. These actions were taken as part of a broader effort to restrict Iranian maritime activities in the region [2].
“"We have captured the vessel Ocean Koi in a special operation"”
The reciprocal seizures and disabling of vessels demonstrate a shift from diplomatic tension to active kinetic engagement in the Gulf. By targeting tankers, both the IRGC and the U.S. military are utilizing maritime leverage to pressure the other's economic and strategic interests, potentially destabilizing global oil markets if the Strait of Hormuz becomes impassable.
