On Tuesday, Iran's Revolutionary Guards reported that a supertanker caught fire after hitting a naval mine south of the Strait of Hormuz. However, there's been no independent verification of this claim.
According to the Islamic Revolutionary Guard Corps (IRGC) Navy, the tanker was breaching Iranian transit laws when it struck the mine, as reported by Reuters. They also claimed that two tankers were set on fire and damaged by mines while traveling through a passage south of the strait that Iran considers off-limits.
The Guards did not identify the vessels involved or provide any independently confirmable evidence regarding these incidents. It is also unclear when the tanks were reportedly hit, which raises questions about whether these claims relate to new events or are reiterations of previous allegations.
These claims are part of a series of similar announcements made in recent months, where many unnamed tankers are reported to have caught fire or exploded while using routes not sanctioned by Iran.
However, assessments from the UK Maritime Trade Operations (UKMTO) and the Joint Maritime Information Center (JMIC) have consistently challenged these accounts.
In its latest advisory published on October 18, JMIC specifically addressed the IRGC's claims about two supertankers hitting mines on October 17.
“On October 17, the IRGC Navy claimed that two supertankers had hit mines in the Strait of Hormuz; these claims are unsubstantiated,” the advisory stated.
This assessment included developments up until October 18, and was released before the latest statements from the IRGC.
Recurring Unverified Mine Claims
The allegations from October are not isolated incidents.
On July 18, the IRGC claimed that two oil tankers exploded after entering a minefield in the southern Strait of Hormuz. They accused U.S. intelligence agencies of encouraging the vessels to use the route, but did not name the ships. U.S. Central Command denied this claim.
A similar claim was made on August 31 when Iranian state television reported that a supertanker struck two naval mines and caught fire while navigating the southern route.
CENTCOM provided a direct denial.
“No ships have hit mines in the Strait of Hormuz,” the military command stated, claiming Iran’s announcement was an attempt to intimidate commercial shipping through misinformation.
Just two days later, on September 2, the IRGC claimed that another two tankers exploded after hitting mines, again without naming the vessels.
The announcements continued into October. On October 10, Iranian officials said a supertanker with around 2 million barrels of crude struck a mine while using an unauthorized southern route. Two days later, the Guards reported another incident involving a tanker allegedly carrying 750,000 barrels of crude, describing it as a third mine strike.
None of these announcements provided the identities of the ships or independently confirmed the reasons behind the reported explosions.
A stark contradiction arose last week following the sinking of the Singapore-flagged containership GFS Pride.
Iran claimed on October 14 that a containership struck a naval mine while using an unauthorized route. This description seemed to match the GFS Pride, which was attacked on October 13, caught fire, and eventually sank.
However, JMIC's October 15 assessment indicated that the vessel was hit by an unknown projectile, clearly stating that Iran's claim about a mine was unsubstantiated.
CENTCOM went even further, attributing the attack to an IRGC projectile and noting that the containership sank while being towed toward shore.
All 21 crew members were evacuated safely, but the ship's sinking left containers and debris floating near the southern entrance of the strait.
Real Threat of Mines Remains
The lack of verification for Iran's recent mine-strike claims does not suggest that the waters are free of mines.
In March, Reuters reported that Iran had reportedly laid about a dozen naval mines in the strait, based on information from two sources. As a result, U.S. forces conducted extensive mine-clearance operations.
In late August, President Donald Trump announced that mines had been removed from the international shipping lanes in the strait, a statement supported by CENTCOM commander Adm. Brad Cooper, who confirmed that U.S. forces had cleared the internationally recognized traffic separation scheme.
However, the potential for mining to resume is still a concern.
JMIC's October 18 advisory warns of a SEVERE threat level for the Strait of Hormuz and specifically advises mariners to stay alert for possible mining efforts within or near the traffic separation scheme.
This assessment separates credible threats from confirmed mine strikes.
The same advisory recorded 153 confirmed maritime security incidents across the broader region since March 1, including attacks with unidentified projectiles, drones, and small boats.
UKMTO reported 12 attacks during the week covered by its October 16 overview, including tanker attacks in the Arabian Gulf and a tugboat hit by two unidentified projectiles near Khor Fakkan, UAE, on October 18.
Iran continues to assert that merchant vessels must adhere to routes approved by Tehran, while the U.S. argues that international shipping lanes are open and that neutral commercial vessels have the right to transit.
For commercial shipping, the difference between a confirmed mine strike and an unverified military claim is important. A verified strike could indicate the presence of newly laid mines in areas previously declared clear by U.S. forces, possibly necessitating new clearance operations and adjustments to voyage plans.
Currently, maritime security officials continue to caution about a very dangerous operating environment. However, their public reports have not corroborated Iran's latest assertions that commercial tankers are being disabled by naval mines.