IRGC says two tankers stopped south of Strait of Hormuz after ignoring radio warnings from Iran

Two related incidents were reported near the Strait of Hormuz. Iran’s Revolutionary Guards Navy said two oil tankers had switched off their tracking systems, ignored radio warnings, and used an unauthorized route. It said the vessels stopped south of the strait after being damaged and catching fire. The Guards claimed responsibility for the action.

Separately, a small boat attached two limpet mines to the hull of the Panama-flagged Louise 1. The explosives caused a fire in its engine room and temporarily disabled the tanker. The attack happened 25 nautical miles, or 46 kilometers, northeast of Oman’s Khasab. The crew was safe, and the fire was extinguished.

UKMTO said there was no environmental impact and that Louise 1 continued to its next port. The attackers were not initially identified, though Iran later claimed responsibility for both attacks. The incidents add to repeated attacks on commercial shipping around Hormuz.

Limpet mines are compact explosive devices designed to cling to a vessel’s hull. They are usually attached below the waterline, where an explosion can damage the engine room, machinery, or other critical systems. Their small size makes them difficult to detect during a vessel’s passage.

The article describes the basic method. A small craft approached Louise 1, attached two mines to its hull, and left. The devices caused a fire in the engine room and temporarily disabled the tanker. Maritime sources identified the weapons as limpet mines, while UKMTO reported that the crew was safe and the fire was extinguished.

This method is dangerous because it needs little equipment and can be carried out in crowded shipping lanes. Marisks called it cheap, low-tech, and efficient. The group said limpet mines had been used in the region since 2017. The attacker was not initially identified, although Iran later claimed responsibility.

The Strait of Hormuz lies between Iran and Oman, connecting the Persian Gulf with the Gulf of Oman and the wider Arabian Sea. It is a natural gateway for vessels entering or leaving the Gulf. Its geography concentrates major shipping traffic into relatively narrow lanes.

That concentration makes the strait strategically important. The article calls it one of the world’s most important oil export routes. It also describes congested shipping lanes where a small boat was able to approach Louise 1 and attach explosive devices. The attack temporarily disabled the tanker and caused an engine-room fire.

The waterway matters beyond any single ship. Iran has repeatedly attacked or stopped commercial tankers around Hormuz, saying some violated its passage restrictions. The latest incidents show how mines, warnings, route restrictions, or attacks could disrupt vessels moving through this vital maritime link.

The article does not state how much oil normally passes through the Strait of Hormuz. Established energy estimates commonly place the figure at about one-fifth of global oil supply, or roughly 20 percent. The exact amount changes with production, demand, sanctions, and alternative pipeline use.

That scale explains why the waterway is strategically sensitive. A disruption would affect a major share of oil moving from Gulf producers to international markets. Even if only some tankers were delayed, threatened, or rerouted, traders could react to the risk of shortages and higher transport costs.

The article describes repeated attacks on commercial shipping and says Iran is seeking to assert control over the strait. It also reports that the latest incidents involved tankers, mines, fires, and route warnings. These events do not prove that the full oil flow has stopped, but they show why security there matters globally.

An unsafe Strait of Hormuz could make oil more expensive before any physical shortage appeared. Traders often price in the risk of delayed cargoes or blocked routes. Tanker owners could also face higher insurance premiums, security costs, and fuel bills if ships had to wait, travel more slowly, or take longer routes.

The effect would depend on the length and scale of disruption. Short attacks might cause temporary price spikes and delays. A prolonged closure or severe restriction could reduce deliveries from Gulf exporters, tighten inventories, and force buyers to compete for replacement cargoes. Energy supplies could become less reliable for countries that depend heavily on these shipments.

The article documents the ingredients for such concern: repeated attacks, mines, fires, unauthorized-route claims, and congested lanes. It does not report a global supply interruption or price increase from these incidents. Their immediate impact was limited, but continuing attacks could raise market and shipping risks.

Iran’s Revolutionary Guards Navy is the naval branch of the Islamic Revolutionary Guard Corps, commonly called the IRGC. It operates separately from Iran’s regular navy and is closely associated with maritime security and military activity around the Persian Gulf and Strait of Hormuz.

In this incident, the Guards said two tankers disabled their tracking systems, ignored radio warnings, and used prohibited or unsafe waters. It said the tankers were damaged and caught fire after striking naval mines. The statement warned that movement or infiltration in areas monitored by Iran’s armed forces would receive a decisive response.

Iran therefore claims authority to regulate or challenge ships that it says violate its restrictions. International maritime law generally protects transit passage through international straits, although coastal states retain certain security and safety powers. The article presents Iran’s claim and actions, but does not settle the legal dispute over those powers.

Tankers normally cross international straits under transit-passage rules, following collision regulations, traffic-separation schemes, navigation warnings, and directions from maritime authorities. Operators usually maintain communications and tracking systems. Ships may also use pilots, escorts, or extra security when risks are elevated, depending on local conditions and company policy.

If Hormuz became unsafe, some oil could move through overland alternatives. Saudi Arabia’s East-West pipeline can carry crude to Yanbu on the Red Sea, and the United Arab Emirates has a pipeline to Fujairah outside the strait. Tankers not using those systems could take longer sea routes around the Arabian Peninsula, although those routes add time and cost.

The article does not discuss these navigation rules or alternative routes. It does show why they matter: Iran accused two tankers of disabling tracking systems and taking an unauthorized route. Any diversion would depend on available pipeline capacity, cargo origin, destination, and security conditions.