Iran says 3 tankers strike mines and catch fire in Strait of Hormuz

Oil prices ended October at six-month highs, settling on Friday at $117.64 a barrel for Brent crude—up 2.4% after touching $118—while U.S. West Texas Intermediate rose 2.1% to $104.12. For the month of October, Brent gained 13.6% and WTI climbed 15.2%. Those market jumps followed a surge in violence as Iran's Islamic Revolutionary Guard Corps reported that four oil tankers caught fire following Friday incidents in or near the Strait of Hormuz, including vessels it said struck naval mines after entering unauthorized routes. The claims could not be independently verified.

Escalating Maritime Attacks and Depressed Shipping Traffic

Prove your Hormuz mine-clearing claim with independent evidence, not statements! That direct challenge, issued on X by Islamic Revolutionary Guard Corps spokesperson Hossein Mohebi, cuts straight to the fierce information war now dominating the Strait of Hormuz. As military tensions escalate, Iran’s Revolutionary Guard reported that four oil tankers caught fire after striking sea mines while navigating unauthorized routes. The dramatic announcements on Friday underscore a high-stakes standoff over control of a critical global waterway where about one-fifth of the world's oil consumption is normally transported, even as Qatari and Pakistani mediators push for a diplomatic breakthrough in Tehran.

The latest maritime crisis centers on a sharp disagreement over safety and route control. According to Iranian state media citing the IRGC Navy, the affected vessels had switched off their radar, navigation, and positioning systems and ignored repeated radio warnings before hitting mines in prohibited areas. Iran has asserted control over much of the waterway since the U.S. and Israel launched the war on Feb. 28, repeatedly warning that vessels attempting to pass without Tehran's permission would face destruction. The IRGC reported that four tankers caught fire on Friday, following similar incidents reported Thursday involving a total of four tankers across the eastern and southern sections of the strait.

By contrast, the United States military flatly denies the mine claims. Adm. Brad Cooper, commander of U.S. Central Command, insisted that all internationally recognized, primary transit routes through the waterway have been cleared of sea mines by U.S. forces, declaring that the strait's main shipping lanes are open and safe for commercial vessels. Furthermore, CENTCOM rejected a claim made by the Revolutionary Guard that it had taken control of an American MQM-170 Outlaw drone in the western Strait of Hormuz, stating that all U.S. military unmanned surface vessels in the Middle East are accounted for, including an advanced sea drone squadron on patrol.

Independent maritime monitoring agencies have offered fragmented details of the violence unfolding at sea. A tally of United Kingdom Maritime Trade Operations Centre reports showed at least 35 attacks on shipping in the Gulf and Hormuz during October, the highest monthly count since the conflict began in February. The UKMTO separately reported a projectile striking a tanker leaving the strait and another vessel catching fire after a strike south of Iran's Lavan Island, with that crew reported safe. In earlier incidents, UKMTO noted a small boat approaching an oil tanker Thursday evening and attaching two explosive devices to its hull above the waterline, sparking a fire in the engine room and temporarily disabled the vessel about 25 nautical miles, or 46 kilometers, northeast of Khasab, Oman, though the fire was extinguished and the crew was safe. Separately, Oman's Maritime Security Center announced that the Royal Navy of Oman had evacuated 25 crew members from a Panama-flagged commercial vessel that came under attack and caught fire 1.6 nautical miles off the coast of Musandam Governorate.

Shipping traffic has improved from earlier lows but remains sharply depressed. UKMTO recorded 122 outbound and 155 inbound transits in the week through October 28, roughly 70% below pre-war levels.

Diplomatic Push, European Costs, and Threats of Renewed Conflict

Away from the combat zone, diplomatic efforts intensified on Friday as a Qatari delegation headed by the country's foreign minister and senior adviser to the prime minister returned to Tehran to meet with senior Iranian officials. Iranian sources said a meeting could take place within a week in Doha or Istanbul. Pakistan's military also expressed cautious optimism about its mediation efforts. The diplomatic outreach follows a letter sent last week by U.S. Vice President JD Vance to Maj. Gen. Mohsen Rezaei, secretary of Iran's Supreme National Security Council. While multiple outlets reported the letter was an attempt by the U.S. to restart peace negotiations, President Donald Trump asserted Wednesday that the outreach was intended strictly to help deliver medical supplies into Iran. President Trump said Friday that talks with Iran were continuing and later suggested the war would end soon, insisting Tehran must never obtain a nuclear weapon.

At the same time, regional allies have been placed on high alert. Two diplomats briefed on the matter told the Associated Press that U.S. officials have warned Middle Eastern countries to prepare for potential renewed military action against Iran after the Nov. 3 U.S. midterm elections, alongside the risk that Tehran's proxy groups might retaliate against regional energy facilities. Reports that U.S. military officials briefed Trump on options for additional strikes, potentially after Tuesday's midterm elections, highlighted the risk of renewed fighting. President Trump has repeatedly stated that he is weighing new military strikes while noting that the war could end soon, though no formal ceasefire agreement has been reached. German Chancellor Friedrich Merz said the conflict had added more than €100 billion ($112 billion) to Europe's energy costs and urged a negotiated settlement.

Iran's hard-line stance remains firm. Tasnim News reported that Tehran is unprepared to drop core demands including the lifting of American port blockades, sanctions relief, and access to frozen foreign financial assets. Iranian Foreign Minister Abbas Araghchi responded with a warning of severe retaliation against countries attacking Iran, keeping the possibility of further disruption to energy shipments in focus, while an Iranian official warned Tehran had prepared a broad response to any new attack.

That leaves regional shipping operators, energy markets, and allied governments facing acute uncertainty as the U.S. midterm elections approach. Shippers navigating the Persian Gulf must weigh contradictory operational directives from Washington and Tehran, balancing U.S. assurances of demined transit lanes against Iranian threats of destruction along unauthorized routes. For energy analysts and international observers, the coming days will test whether Qatari-led mediation can bridge deep divides over nuclear inspections and sanctions before military escalation resumes.

To track the trajectory of this crisis, readers and market participants should monitor several concrete indicators over the coming week:

Official post-election announcements from Washington concerning military posture and potential new strikes in the Persian Gulf.

Verified updates from UKMTO and regional maritime centers regarding the identities and crew conditions of the disabled tankers.

Any independent verification of mine-clearing operations or further incidents along the southern transit corridor of the Strait of Hormuz.