Iran’s Islamic Revolutionary Guard Corps (IRGC) navy said on Friday that an oil supertanker carrying more than two million barrels of crude oil struck a naval mine in the Strait of Hormuz and caught fire, in one of the most serious maritime incidents claimed during the Iran war.
- Who: The claimant is Iran’s IRGC Navy; the vessel itself has not been identified.
- What: A supertanker allegedly struck a naval mine and caught fire while crossing the Strait of Hormuz on what Iran calls an “unauthorised” route.
- When: The IRGC statement was reported Friday, October 17, 2026, via Tasnim and Press TV.
- Why it matters: The ship was reportedly carrying over two million barrels of crude through a chokepoint whose traffic is already about 70% below pre-war levels.
What Iran is claiming
According to the statement carried by the semi-official Tasnim news agency, the IRGC Navy said the supertanker switched off all navigation and radar systems and tried to cross the strait “by deception” with the support of the US military. Press TV released footage attributed to the IRGC that purportedly shows a massive explosion followed by an intense fire on the vessel.
The IRGC described the ship as a “rogue” tanker attempting to use a route Tehran has declared off-limits. “The Strait of Hormuz is closed,” the force warned, adding that vessels violating Iranian regulations would face severe consequences. It said ships using unauthorised routes would be pursued and “punished” across the entire region.

What remains unconfirmed
The statement gave no name, owner, or flag for the vessel, and no information about possible casualties or the extent of the damage. The identity of the tanker, the precise location, and the circumstances of the reported explosion have not been independently established.
The claim arrives amid a spate of mine strikes in the waterway. For the wider context, see Emadan’s timeline of the 2026 Saudi–Houthi escalation. Earlier this week, the Singapore-flagged container ship GFS Pride sank after being attacked in the strait; Singapore’s maritime authority said all 21 crew members were safely evacuated.

Why it matters for oil markets
The Strait of Hormuz is one of the world’s most important shipping lanes for crude oil. Tehran’s war finances are under growing pressure – US officials say Iran’s militia proxies are now funneling money back to the IRGC. The United Kingdom Maritime Trade Operations (UKMTO) said this week that 12 attacks were reported in its latest weekly reporting period, ten of them in the strait, and that combined transits remained about 70% below pre-war levels.
Oil markets reacted sharply on Friday. Brent crude settled at $109.86 a barrel, up 3.7% on the day, while US West Texas Intermediate closed at $101.41, up 3.5%, Times Now reported.
Talks continue in the background
The escalation comes as diplomacy grinds on. US President Donald Trump has said Washington has held “very good” talks with Iran and suggested a deal to end the conflict could be within reach. Tehran says a US proposal delivered through mediator Pakistan remains under review, according to Iran’s Foreign Ministry spokesman Esmaeil Baghaei, cited by Al Jazeera.
On Thursday, Iranian President Masoud Pezeshkian told Russia’s Vladimir Putin that Iran “will not abandon the negotiating table,” NDTV reported.
Reporting based on coverage by Al Jazeera, ANews, NDTV, Daijiworld, and Press TV footage. All claims about the incident are attributed to Iran’s IRGC Navy and have not been independently verified.
