Iran Used Limpet Mine Placed On Ship’s Hull In Latest Strait Of Hormuz Attack: Report
A small boat in the Strait of Hormuz approached a tanker and placed two explosive devices on the hull above the waterline, causing a blast that started a fire in the engine room, the United Kingdom Maritime Trade Operations (UKMTO) center reported. The attack on the Dubai-owned tanker Louise 1 was carried out by Iranians using limpet mines, Financial Times reported. The incident took place Thursday and was the first of its kind since June 2019, when a Japanese and a Norwegian ship were hit with limpets, the publication noted.
This is the first indication of the successful use of these mines during the current Islamic Revolutionary Guard Corps’ (IRGC) wave of strikes against shipping in the Strait of Hormuz following Operation Epic Fury. The attack also highlights the challenges of keeping ships safe in a busy and complex littoral.
“The apparent ability of a small craft to approach a transiting tanker, deploy explosive devices and withdraw presents a significant security concern, particularly in the Strait’s congested shipping lanes,” Greece-based maritime risk management group Marisks said on Friday, Reuters reported.
TWZ covered the 2019 attacks extensively, including sharing the following video showing an Iranian Navy or IRGC fast boat going back to remove a dud limpet mine from the Japanese-owned Kokuka Courageous’s damaged hull.
Limpet Mine Attack in the Gulf of Oman: JUNE 13, 2019
Earlier Friday morning, U.S. Central Command (CENTCOM) commander Adm. Brad Cooper said the waterway was cleared of sea mines. He was not addressing the limpet mine claim.
He stated on X that after “we sank Iran’s navy earlier this year, we also successfully cleared the strait’s internationally recognized primary transit routes of Iranian sea mines, and today U.S. forces remain highly vigilant and present to ensure that all primary transit routes in the Strait of Hormuz remain free and clear.”
“This week we reached a significant milestone, having now assisted Gulf partners in exporting more than 1.5 billion barrels of crude oil since summer,” Cooper added.
Recalling a recent flight over the Strait of Hormuz, Cooper noted that he “saw our U.S. assets in the air and on the water, including a squadron of advanced sea drones that were on patrol supporting a defensive layer. Here’s what I didn’t see: I didn’t see the IRGC out there at all.”
Also known as uncrewed surface vessels (USVs), the sea drones are part of an increasingly uncrewed armada of air, land and sea assets that are supporting the safe corridor through the Strait.
The USV type shown in the following video, a Saronic Corsair, made history twice in the battle against Iran. In July, the USVs were used as a strike weapon in combat for the first time by the U.S. A month earlier, a Saronic Corsair USV rescued the crew of a U.S. Army AH-64 Apache that crashed in the Gulf of Oman after it was downed by Iran.
Despite the heavy presence of CENTCOM forces, this month is turning out to be particularly dangerous for shipping in the region.
“October has seen the highest number of ship attacks on record,” Noam Raydan, a senior fellow at the Washington Institute for Near East Policy, said last week, according to the BOE Report, an oil industry publication. “Raydan, who maintains the institute’s interactive shipping incident map, has recorded 28 confirmed and reported attacks in the Strait of Hormuz and surrounding waterways in October and 113 since the US-Israeli war with Iran began on February 28.”
These strikes, combined with ongoing Houthi attacks on Saudi Arabia’s oil infrastructure, have already placed tremendous pressure on a global economy relying heavily on fossil fuel from the region. As of Friday morning, Brent crude topped $117 per barrel, the highest level in more than four years, according to OilPrice.com.
The American oil industry, meanwhile, is making a fortune on this situation.
“The war with Iran has been very lucrative for American oil companies, which have earned more than $130 billion in profit as people pay much higher prices for gasoline, diesel and other fuel,” The New York Times reported on Friday. “That is a conservative estimate based on the performance of more than 50 large U.S. oil and gas companies, most of them producers or refiners, in the six months from April through September. It does not reflect profits earned in March, the first month of the war, or in October.”
“The United States oil and gas business is making hundreds of billions of dollars,” Trump said at an Oct. 24 campaign rally, describing how the war is affecting the industry.
The Latest
Qatari mediators returned to Tehran on Friday in another bid to try to pull the Middle East region back from the brink of war. The visit takes place as the U.S. and Israel are gearing up for a possible new round of strikes against Iran that could come as soon as next week after America’s midterm elections.
U.S. President Donald Trump has frequently stated that he could order new strikes, likely with Israeli assistance, after control of the next Congress is settled. While Trump could be gearing up to hit Iran again, leaks about war planning could also be messaging to compel Tehran back to the bargaining table.
“It’s going to get wrapped up soon,” Trump said Friday morning in an interview with Kansas City radio station KCMO. “We need a guarantee there’ll never be a nuclear weapon.”
Whether this latest Qatari effort can stop the clock winding down toward a resumption of hostilities remains questionable. Washington and Tehran seem far apart in their goals for achieving an agreement to stave off war.
The U.S. wants nuclear issues included from the start of negotiations while Tehran demands that the U.S. first end its port blockade and lift oil export sanctions, Reuters reported on Friday.
A senior Iranian official has already dismissed a plan presented by Qatar as “unacceptable,” the outlet added. “The proposal presented by Qatar sets a seven-day timeline addressing both Tehran’s and Washington’s concerns, laying out daily confidence-building steps that each side must take,” the news outlet reported on Oct. 28, citing an official briefed on the negotiations.
The Qatari mediation is the latest diplomatic effort to prevent new fighting. On Monday, major regional powers met in Tehran to find a peaceful way forward.
Regardless, American forces are locked and loaded for a possible new round of strikes against Iran. Israel also continues ramping up attack plans in coordination with the U.S. in the wake of a so-far inconclusive national election that could result in the end of Prime Minister Benjamin Netanyahu’s career.
“Cooper rarely briefs Trump in person, so the meeting could signal that the U.S. is moving closer to significant military operations,” the publication stated. “He met with the president in July, when the two huddled with Hegseth and Caine on Air Force One in Delaware.”
CENTCOM declined comment when we asked to confirm the meeting as described. The Pentagon referred us to the White House, and the White House did not respond to our request for comment.
While the Journal offered no specific details about the plans discussed at the White House meeting, previous reporting has suggested Trump is seeking a short, intense bombing campaign.
“According to several people familiar with the war plans, any new US-Israeli assault would be intense, lasting some three days and targeting nuclear facilities, regime assets and civilian infrastructure including power plants,” Financial Times reported on Thursday.
A top Democratic senator said he was briefed on plans and was shocked by what he heard.
“I will just say this: their plan is insane,” Sen. Chris Murphy of Connecticut said. “It will lead to devastating escalation and the likely destruction of our commitment to the rule of law.”
“There’s been open reporting as to what we may be planning and the civilian infrastructure that we may be targeting,” Murphy added. “The plan that they have developed will lead, in my view, to a prolongment and an escalation of this war that will be devastating for our security interests.”
As the White House continues to put the finishing touches on new attack plans, the U.S. is bolstering its forces in the Middle East as we noted at the top of this story.
“The U.S. military is sending an additional Patriot system to Israel from Texas to beef up its missile defenses in the country, according to flight-tracking data and two officials with knowledge of the movement,” the Journal reported on Wednesday. “The U.S. has also moved troops off bases in the Middle East where they were vulnerable in preparation for an escalation.”
“U.S. forces in the region have been restocking their munitions, and bomber aircraft and jet fighters are preparing for strikes, some of the officials said.”
As we previously noted, there have been other signs that a major new round of U.S. and/or Israeli strikes on Iran might be looming on the horizon. Fox News reported that the Nimitz class aircraft carrier USS Theodore Roosevelt and the rest of its carrier strike group, as well as the Makin Island Amphibious Ready Group carrying the 13th Marine Expeditionary Unit (MEU), are heading to the Middle East, citing unnamed U.S. officials.
“The ships will arrive in the Middle East by the end of November,” the officials said, according to a post on X from Fox’s Jennifer Griffin on Tuesday. “These new deployments will add about 10,000 sailors and Marines to the Middle East.”
You can find out more about the locations of the U.S. Navy’s fleet of flattops in our “Where Are The Aircraft Carriers?” feature.
There have been indications of increased U.S. military air activity in the Middle East recently, as well. Observers have called attention to the particularly significant influx of aerial refueling tankers to bases in the region, as well as in Europe, which would be critical to any new major air campaign.
America and Israel struck hard at Iranian logistics during Operation Epic Fury, and the U.S. Navy maintains a blockade on Iranian ports. Still, the IRGC has managed to bring in materiel critical to its drone and missile programs.
A new Reuters investigation examines how.
“Iran has created a secret network of military agencies with global reach to import at least $2 billion in hardware, explosives and heavy-duty trucks since January 2025, evading both the US naval blockade and Western sanctions,” the investigation found. “Hidden behind names starting with the letters MOD, for the Ministry of Defense, are more than 5,000 agencies that form a formidable financial and military machine. Their financial footprints are on bills of lading and other shipping data dating back to 2016. Some are tied to the Islamic Revolutionary Guard Corps and to business conglomerates known as bonyads that are controlled by Iran’s elite.”
“The findings offer a window into one of the war’s great mysteries,” the outlet explained. “How is the IRGC replenishing its missile and drone arsenals while firing them in their thousands?”
Amid events in the Persian Gulf region, fighting between the Iranian-backed Houthi rebels of Yemen and Saudi Arabia rages on.
On Friday, Saudi Arabia said it intercepted and destroyed a Houthi drone near Islam’s holiest city, a claim the Houthis denied.
On Thursday, the Houthis claimed attacks on a half dozen targets across the kingdom, including oil facilities and airports. Saudi officials, for their part, said they intercepted ballistic missiles.
Adding to regional jitters, there were fresh reports of explosions near Iran’s Qeshm Island in the Strait of Hormuz Thursday night. However, these incidents often turn out to be air defense activity, warning shots fired at ships or nothing at all.
CENTCOM on Friday pushed back against claims that the command acknowledged attacks on Iranian targets.
“The reported notion that CENTCOM claimed any recent attacks is false,” Capt. Tim Hawkins, the command’s spokesman, told TWZ.
For now, the world is waiting nervously to see whether the Middle East again erupts into war. We should have a clearer picture in the coming days.
Contact the author: howard@twz.com
