Iran Sets Tanker Ablaze in Strait of Hormuz After US Strike

A supertanker caught fire Sunday after being struck by an unknown projectile in the Strait of Hormuz, hours after the U.S. military destroyed a cargo ship attempting to break Washington's naval blockade against Iran, according to the New York Post. Iran's Islamic Revolutionary Guard Corps said the vessel struck one of its own naval mines, while the UK Maritime Trade Operations, which tracks shipping in the region, said the tanker was hit on its port side and that the incident remains under investigation.

The tanker was not immediately identified. The IRGC released video of the vessel burning on the water and used the moment to repeat its warning to any ship crossing the strait without its approval.

What happened to the supertanker in the Strait of Hormuz?

The fire broke out after the tanker was struck on its port side, UK Maritime Trade Operations said, according to the Post. The cause has not been independently confirmed. Iran's IRGC claimed the ship detonated one of its naval mines, but UKMTO has not attributed the blast to a specific source, and the Post reported the matter is still being investigated.

What was the US strike that came just before it?

The tanker fire broke out just hours after U.S. Central Command confirmed it had destroyed a commercial cargo ship that was attempting to run the United States' naval blockade against Iran, the Post reported. CENTCOM's full statement on the strike was not detailed in the available reporting, but the timing — a U.S. strike on a blockade-runner followed within hours by a tanker fire claimed by Iran's own mines — underscores how contested the waterway has become.

How many tankers have been hit in the strait recently?

Iran has carried out near-daily attacks in the strait in recent weeks even as crude oil continues to flow at roughly pre-war levels under U.S. military escort, the Post reported, citing the pattern as evidence that Tehran's control over the shipping chokepoint has slipped. At least 11 tankers came under attack during the week that ended Oct. 4, the most strikes on commercial ships in the Strait of Hormuz since the war began Feb. 28, according to the United Nations' International Maritime Organization, as cited by the Post. Another 10 strikes occurred the following week.

One of those strikes, on a Monday, left 12 Indian sailors injured aboard the On Peace, an oil tanker owned by the United Arab Emirates, according to the Post. The injury count is the only human toll detailed in available reporting on the week's run of attacks.

What is the IRGC threatening with its mine warnings?

The IRGC's statement following Sunday's fire was blunt about what it expects to happen to ships that cross the strait without its permission.

"A devastating fire is the fate of any tanker that violates the rules and disregards security in the Strait of Hormuz," the IRGC said in a statement reported by the Post.

The statement did not specify whether the IRGC was claiming credit for Sunday's blaze directly or simply using the fire — which it attributed to one of its own mines — as an illustration of a broader threat. The ambiguity is consistent with how Tehran has framed the strait throughout the string of attacks: as a waterway it controls through the threat of mines and projectiles, even as outside investigators like UKMTO decline to confirm the cause of any single incident.

What should shippers and markets watch next?

The near-daily tempo of attacks — 11 tankers hit in the week ending Oct. 4 and 10 more the following week, per the IMO figures cited by the Post — has not stopped crude from moving through the strait at close to pre-war volumes, the Post reported, because the U.S. is escorting tankers militarily. That arrangement is the backdrop against which Sunday's fire and the U.S. strike on the blockade-runner both occurred.

What to watch: whether UKMTO or another independent party identifies the cause of Sunday's fire, since the IRGC's mine claim and the proximity to a U.S. strike on a separate vessel leave open questions about attribution; whether the injury tally from strikes on vessels like the On Peace continues to rise as the pace of attacks holds; and whether Washington expands the kind of blockade-enforcement strike CENTCOM confirmed Sunday, which would mark an escalation beyond the military escort role it has played to keep crude flowing.