Tehran says tankers hit mines in Hormuz, and no one else can confirm it

Al Jazeera reported on 18 October that Iran’s Islamic Revolutionary Guard Corps said two oil tankers, each carrying about two million barrels of crude, caught fire after striking naval mines in the Strait of Hormuz, and that the vessels had used an unauthorised route. Gulf News’s live blog, in an entry timestamped 23:23 on 18 October, described a single tanker and was explicit about what is missing: the vessel’s name, flag, ownership, crew status and the extent of any environmental damage were not disclosed in initial reports, and there was no independent confirmation that a mine was involved, citing Reuters reporting carried by other outlets. The count itself is therefore unresolved — one hull or two — and every element of the incident rests on the account of one belligerent.

The surrounding fortnight is better evidenced. Al Jazeera reported that six vessels were attacked in or near the strait on Sunday 11 October, the most in a single day since the war began, according to the security firm Vanguard, the International Maritime Organization and UKMTO, and that maritime monitors reported two further tankers struck in Gulf waters off Saudi Arabia on Friday 16 October. UKMTO’s own wording on those two, carried by CBS News, was that “the master of a tanker has reported being attacked by an RPG (rocket-propelled grenade) from a small boat, resulting in damage to the aft port quarter,” and that a second tanker was hit by an “unknown projectile,” with “all crew are reported safe and have been evacuated. There is no reported environmental impact at the time of report.” UKMTO has previously said October is the busiest month on record for reported attacks on shipping in the strait.

IRGC naval commander Rear Admiral Ali Azmaei warned this week that any vessel deactivating its navigation systems would be treated as “hostile,” according to Al Jazeera. That is the operative line in the file. Tehran says it is stepping up strikes in response to the US blockade of its ports and the tougher sanctions imposed last month; Washington has imposed its own naval counter-blockade on Iranian oil exports. Going dark on AIS is precisely the behaviour that transit under escort or evasion encourages, and Azmaei has now declared it sufficient grounds for attack — a standard that covers almost any hull moving through the strait without Iranian consent.

Assessment: Note what the word “mine” buys. A mine strike is attributable to the ship’s own course, not to an Iranian decision; it is the only claim in the file that turns an attack into an accident, and it arrives with no name, no flag and no crew report to check it against. Treat the hull count as open until a registry or an owner speaks. The firmer ground is UKMTO’s incident log and Azmaei’s AIS threat, which together define the real risk: not mines, but a declared Iranian right to fire on anything untracked. That is what underwrites the pricing in the second story.