Iran Says It Seized Second U.S. REMUS‑600 Underwater Drone in Strait of Hormuz
Iran says it has intercepted and seized a second U.S. REMUS‑600 underwater drone in the Strait of Hormuz, claiming it used electronic warfare to force the vehicle to the surface. The seizure highlights a growing contest under the waterline in one of the world’s most sensitive oil chokepoints.
Iranian forces say they have captured another U.S. underwater drone in the Strait of Hormuz, adding a new incident to an already tense standoff over the key shipping route.
According to Iranian channels, the intercepted system is a U.S.-made REMUS-600 autonomous underwater vehicle. They claim it was operating in the narrow Strait of Hormuz, between Iran and Oman, when Iranian units used electronic warfare to cut its control link, force it to the surface, and seize it. The same sources say this is the second time they have captured this type of drone.
The Strait of Hormuz is only about 33 kilometers wide at its narrowest point and carries a large share of global oil shipments by sea. Any move that changes risk calculations for naval operations there tends to draw close attention from militaries and energy markets. So far, there has been no public confirmation from Washington that a REMUS-600 has been lost in this area, and the U.S. military has not issued a formal statement on the reported capture.
REMUS-600 drones are commonly used for missions such as detecting sea mines, mapping the seabed, and gathering reconnaissance in waters where sending divers or crewed vessels would be more dangerous. Their presence in the Strait of Hormuz would fit with U.S. efforts to monitor routes where Iran has previously mined or harassed commercial shipping.
If Iran’s account is accurate, and this is the second REMUS-600 it has seized, the pattern matters for navies and commercial operators. Underwater drones help keep sea lanes safe without putting crews directly in harm’s way. If an adversary can track, jam, and physically capture them, operators lose a key safety tool and face the risk that hardware and collected data will end up under hostile scrutiny.
For Tehran, displaying a captured U.S. system offers both military and political value. It supports its narrative that it can police nearby waters and push back against Western surveillance. For the U.S. and its partners, each compromised drone raises questions about what Iran can infer about the sensors, mission profiles, and protection built into these systems.
This episode links into a wider struggle over influence in the Strait of Hormuz. Iranian parliamentary speaker Mohammad Bagher Ghalibaf has recently argued that oil price premiums show markets still factor in Iranian leverage over the strait, regardless of U.S. public messaging. At the same time, a senior U.S. economic official has suggested Iran’s ability to pressure global trade is weakening as China reportedly cuts back on purchases of Iranian oil and the amount of Iranian crude stored at sea falls.
Incidents involving drone captures, tanker detentions, and military overflights all contribute to a climate of uncertainty for shipowners, crews, and insurers operating near Hormuz. Each one forces them to reassess how exposed they are to miscalculation or sudden escalation.
Whether this latest report shifts that balance will depend on several signals: if the U.S. publicly acknowledges the loss or quietly adjusts its naval posture; whether Iran releases images or technical details of the captured REMUS-600; and whether there is any parallel increase in Iranian inspections or harassment of commercial shipping that suggests a broader campaign linked to the undersea incident.
Sources
- OSINT