IRGC mines set tankers ablaze as Tehran threatens expanded attacks

Two oil tankers were reportedly set on fire and brought to a standstill after striking mines in the Strait of Hormuz. The IRGC claimed its navy had laid the mines and said the tankers were using a southern route near Oman that Iran unilaterally calls unauthorized. The incident matters because it shows how mines can disrupt commercial shipping in a narrow, globally important waterway.

The alleged mechanism was direct: vessels entering the route encountered explosive mines. The IRGC statement did not name either tanker or give the precise location. UKMTO separately reported an incident involving an oil tanker and military forces about 121 nautical miles east of Duqm, Oman. It reported no damage or casualties and did not identify the vessel.

The claim remains part of a wider confrontation. Iran has threatened further attacks on shipping and undersea cables, while the article notes that international maritime law does not give Tehran recognized authority to restrict passage through the strait.

The Strait of Hormuz is a narrow waterway between Iran and Oman, linking the Persian Gulf with the Gulf of Oman and the wider Indian Ocean. It matters because ships carrying oil and other cargo must pass through this strategic maritime gateway. Its geography concentrates traffic into limited navigable routes, so military threats or blockades can affect many vessels at once.

The article describes Iran claiming authority over a southern route near the Omani coast. It also says Tehran has no recognized power under international maritime law to decide which vessels may pass. The strait is subject to the right of transit passage under the UN Convention on the Law of the Sea.

Its importance extends beyond the countries on its shores. Before the war, roughly one-fifth of the world’s oil passed through the waterway. The article also reports that about 6,000 seafarers have been stranded there since the conflict began.

Before the war began, roughly one-fifth of the world’s oil passed through the Strait of Hormuz. The figure measures the strait’s normal role in global oil transport, not the amount moving during the reported crisis. It makes the waterway one of the most consequential routes for energy shipments.

The mechanism is straightforward. Oil tankers use the strait to move cargo between Gulf exporters and customers elsewhere. If mines, military confrontations, or blockades make the passage unsafe, vessels may stop, wait offshore, or seek longer routes. Even without a complete closure, higher risks can delay deliveries and raise shipping costs.

The article reports that both Tehran and Washington have implemented blockades and that Iran has repeatedly targeted cargo vessels. It also says the IRGC threatened undersea cables. Continued disruption could therefore affect oil flows, communications, crews, and markets far beyond Iran and Oman.

The IRGC, or Islamic Revolutionary Guard Corps, is described in the article as an elite Iranian paramilitary force. Its naval arm operates in and around the Strait of Hormuz, where it can influence shipping and confront foreign military forces. Its involvement matters because the force combines military reach with direct control over maritime threats.

The article gives several examples of that capability. The IRGC said its navy laid mines that allegedly struck two tankers. It also claimed an air-defence system shot down a US MQ-9 drone, although a US official rejected the claim. An IRGC spokesperson further threatened undersea internet cables and promised new weapons.

These actions show how the force can create risk through mines, air defence, and threats against infrastructure. The article does not establish that every claim is true. It records competing statements, including Washington’s denial of the drone claim and its lack of comment on a reported strike at an Iranian naval base.

If attacks or blockades make the Strait of Hormuz unsafe, oil tankers may delay voyages, avoid the area, or face damage and fire. That could slow deliveries from Gulf producers and make transport more expensive. Because roughly one-fifth of the world’s oil normally passes through the strait, even partial disruption could have effects well beyond the region.

The article provides a direct example. The IRGC said two tankers struck mines and caught fire, while both Tehran and Washington implemented blockades. UKMTO reported an incident involving a tanker and military forces, though it reported no damage or casualties. These events illustrate how threats can interrupt movement even when details remain disputed.

Seafarers face personal danger and prolonged delays. Arsenio Dominguez said about 6,000 seafarers had been stranded since the war began and criticized shipowners for sending crews into the area. Continued attacks could worsen congestion, isolate crews, and further disrupt oil and cargo flows.

If tankers cannot safely cross the Strait of Hormuz, oil exporters may try to move crude through pipelines that reach ports outside the strait. They may also use storage, load cargo at alternative terminals, or reroute shipments by sea. These options matter because they can preserve some exports while avoiding the immediate danger zone.

The key mechanism is substitution. A pipeline can carry oil overland to a different coast, while storage can delay loading until conditions improve. Rerouting tankers can avoid a threatened passage, but usually adds distance, time, fuel use, and insurance costs. Available capacity is limited, and different exporters have different infrastructure.

The article itself does not name alternative routes or say how much oil they could handle. It only states that roughly one-fifth of global oil normally used Hormuz and that blockades and attacks have affected shipping. Any bypass would therefore reduce, not necessarily eliminate, the consequences of a dangerous strait.

The right of transit passage is a rule under the UN Convention on the Law of the Sea for international straits used by ships moving between one part of the sea and another. It allows vessels to travel through the strait continuously and expeditiously. The principle matters because it protects an international shipping route from being closed by a single coastal state.

Applied to Hormuz, the rule means Iran cannot simply designate a route as forbidden or authorize only selected vessels. The article says Tehran unilaterally labeled the southern passage unauthorized, but adds that Iran has no recognized authority under international maritime law to restrict passage. Ships still have duties, including proceeding without threatening coastal security.

The legal rule does not remove the immediate physical danger. Mines, military encounters, and blockades can still make passage unsafe in practice. The article describes those threats and says both Tehran and Washington have implemented blockades, creating a conflict between legal navigation rights and conditions on the water.