Limpet Mine Attack on MT LOUISE 1 Highlights New Threats in the Strait of Hormuz

On October 30 2026 a Panama-flagged crude-oil tanker, MT LOUISE 1, was struck by two limpet mines attached to its hull while transiting the Strait of Hormuz. The explosions ignited a fire in the engine room, temporarily disabling the ship. The crew extinguished the blaze, no environmental damage was reported, and the tanker resumed its voyage.

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The Strait of Hormuz links the Persian Gulf with the Gulf of Oman and the Arabian Sea, carrying a large share of global oil shipments. Since the U.S.–Iran conflict began in February 2026, commercial vessels have faced projectile attacks and, more recently, limpet-mine assaults.

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• Crew safety: 27 Indian seafarers aboard MT LOUISE 1 and 2 Indian nationals on the Liberia-flagged VLCC MT ARZANAH (targeted on October 29) were reported safe.

27 Indians aboard tanker hit in first known limpet-mine attack in Strait of Hormuz

• Explosives: Two limpet mines attached to MT LOUISE 1.

Designed to cripple, not sink: How limpet mines hit tanker with 27 Indians

• Location: About 25 nautical miles (46 km) northeast of Khasab, Oman.

27 Indians aboard tanker hit in first known limpet-mine attack in Strait of Hormuz

• Historical note: First confirmed successful deployment of limpet mines against a vessel in the Strait since the February 2026 conflict began.

The Jerusalem Post

• Union Minister for Ports, Shipping and Waterways Sarbananda Sonowal confirmed the safety of all 29 Indian crew members on the two tankers and said the government was monitoring the situation.

New Indian Express

• United Kingdom Maritime Trade Operations (UKMTO) issued an advisory noting crew safety, no environmental impact, and that the vessel continued its journey.

New Indian Express

• Iran’s Islamic Revolutionary Guard Corps (IRGC) Navy claimed the mines damaged “enemy oil tankers” that violated navigation restrictions and warned of “decisive and proportionate response” to unauthorized movement.

The Jerusalem Post

• Maritime risk-management firm Marisks warned that a small craft can approach a moving tanker, attach explosives, and withdraw, describing the tactic as “cheap, low-tech and very efficient.”

Tanker with 27 Indians hit in first limpet-mine attack in Hormuz

Attribution remains unclear. Reuters-cited maritime security sources identified limpet mines but did not assign responsibility. The IRGC asserted the mines were part of Iran’s response to vessels it deemed violators, but no independent verification has been provided, and the United States has not confirmed involvement.

27 Indians aboard tanker hit in first known limpet-mine attack in Strait of Hormuz

• “On October 29, Liberia-flagged VLCC MT ARZANAH, carrying 2 Indian nationals, and on Oct 30, Panama-flagged crude oil tanker MT LOUISE 1, carrying 27 Indian seafarers, were targeted in projectile attacks in the Strait of Hormuz.” — Sarbananda Sonowal

Tanker with 27 Indian seafarers targeted in first-ever limpet mine attack in Strait of Hormuz

The incident shows a shift from missile or drone strikes to low-technology, covert explosives that can be deployed by small boats, making detection harder and threatening critical ship systems.

Designed to cripple, not sink: How limpet mines hit tanker with 27 Indians

No scheduled hearings, naval patrols, or diplomatic initiatives were detailed in the sources. Ongoing monitoring by national authorities and maritime security firms is expected as the region’s risk environment evolves.

Tanker with 27 Indian seafarers targeted in first-ever limpet mine attack in Strait of Hormuz