Iran intensified attacks on commercial shipping in the Strait of Hormuz in October 2026, sinking the container ship GFS Pride and the bulk carrier Cape Dao and striking at least a dozen vessels in the week ending October 16. The United States and Iran are issuing contradictory public claims about who controls the waterway, while Brent crude hit $110 a barrel, its highest level since May.
Iran has carried out a wave of attacks on commercial vessels passing through the Strait of Hormuz in October 2026, sinking at least two ships and striking a dozen more in a single week, as part of the war between Iran and the United States that began in late February 2026. Washington and Tehran are making contradictory public claims about who controls the waterway, while the global oil benchmark Brent crude climbed to its highest level since May.
Ships hit and sunk this month
The most significant single loss was the GFS Pride, a Singapore-flagged container ship with capacity for 2,824 containers. It was struck by an unidentified projectile around October 13 while transiting the strait, caught fire and sank by October 15. All 21 crew members were evacuated safely and no injuries were reported, according to Singapore's maritime authority. Iran's Islamic Revolutionary Guard Corps (IRGC) said the ship had struck a naval mine on an "unauthorised route" and that it was carrying more than 2,500 containers, some of them allegedly contraband, according to Iran's Tasnim news agency. The maritime security firm Marisks said it found no independent evidence that a mine caused the sinking. A sister ship, the GFS Giselle, was damaged in the same wave of attacks but reached anchorage safely.
Separately, the Antigua and Barbuda-flagged bulk carrier Cape Dao, struck on September 23, was confirmed sunk by October 14 or 15. One crew member was killed in that attack and the rest of the crew was evacuated, Arab News reported. Singapore's Maritime and Port Authority said the pattern of attacks on vessels linked to the city-state violated international law and was unjustified.
On October 17, the IRGC said a supertanker carrying more than two million barrels of oil caught fire after striking a mine on what Tehran again described as an "unauthorised route," Al Jazeera reported. That same week, Al Jazeera reported a separate tanker was hit by a rocket-propelled grenade fired from a small boat about 78 nautical miles northeast of Jubail, Saudi Arabia, and that two other vessels were struck by naval mines.
Washington and Tehran dispute who controls the strait
US Central Command chief Admiral Brad Cooper said on October 16 that the strait was controlled by the United States and its regional partners, not Iran, and that it remained open for commercial traffic, attributing the attacks to the IRGC's weakening position. Cooper said about 400 merchant ships had transited the strait over the previous seven days and that US-backed forces had helped move more than 100 million barrels of crude in the same period.
The Strait of Hormuz is closed and the armed forces of the Islamic Republic of Iran have full control over it.
— Mohammadreza Naqdi, IRGC adviser, quoted by The National
Iran's government says the strait remains unsafe for vessels that do not coordinate with its self-declared Persian Gulf Strait Authority. Iran's acting defense minister, Majid Ibn Reza, said that the war's effects would extend beyond the battlefield to the US economy, its global reputation and even its electoral calculations, Al Jazeera reported. US Secretary of State Marco Rubio had earlier said the strait remained open and that oil exports were running at close to pre-war levels, according to The National.
Independent data versus official claims
Shipping intelligence firm Kpler calculated that oil flows through Hormuz fell to 11.62 million barrels a day in mid-October, about 68% of the pre-war baseline of roughly 17.15 million barrels a day, a figure also cited by Al Jazeera. The UK Maritime Trade Operations centre (UKMTO) recorded only 254 combined transits for the seven days ending October 14 — well below Cooper's figure of about 400 — and just 42 of those were independently verified through ship-tracking data, with the rest relying on unverified Pentagon reporting. The IMF's PortWatch tracker logged only two transits on October 11, against a pre-crisis daily baseline of about 85.
Brent crude futures touched $110 a barrel on October 16, their highest level since May.
US claims versus independently tracked data (week of Oct 14–16, 2026)
Metric
US/CENTCOM figure
Independent tracking
Vessels transiting Hormuz (7 days)
~400 ships
254 recorded by UKMTO; only 42 independently verified
Crude oil moved through strait (7 days)
100+ million barrels
11.62 million barrels/day average, ~68% of pre-war level (Kpler)
Daily transits, Oct 11
Not stated
2 transits vs. ~85/day pre-crisis baseline (IMF PortWatch)
Background and what remains unconfirmed
The attacks are part of what sources refer to as the 2026 Iran war, which began in late February 2026, with major strikes recorded on February 28 and March 1, according to a Wikipedia compilation of vessel attacks during the conflict. Early merchant casualties included two crew killed aboard the tanker Skylight near Khasab, Oman, and one killed aboard the tanker Hercules Star near Ras Al Khaimah, both on March 1. On the Iranian side, the US submarine USS Charlotte sank the frigate IRIS Dena on March 4, and other US strikes destroyed or damaged several additional Iranian naval vessels, including the frigates IRIS Jamaran and IRIS Bayandor, in the war's opening weeks.
Several details remain disputed or unconfirmed. Independent investigators have not corroborated Iran's mine claim for the GFS Pride sinking, and the vessel's cargo manifest has not been published. UKMTO has said most attacked ships do not file reports, making a precise tally of October's attacks impossible.
Questions
How many ships have been attacked in the Strait of Hormuz in October 2026?
Al Jazeera reported at least 12 vessels were attacked in the week ending October 16, 2026, the highest weekly total since the war began in late February. UKMTO has said most attacked ships do not file reports, so an exact count for the month is not possible.
Have any ships sunk in the attacks?
Yes. The Singapore-flagged container ship GFS Pride sank in mid-October after catching fire following a strike, with all 21 crew evacuated safely, and the bulk carrier Cape Dao, struck on September 23, was confirmed sunk by mid-October with one crew member killed.
Do the US and Iran agree on who controls the Strait of Hormuz?
No. US Central Command chief Admiral Brad Cooper said the strait was controlled by the United States and its regional partners, not Iran, while Iran's government says vessels that do not coordinate with its self-declared Persian Gulf Strait Authority are unsafe, and its acting defense minister has said the war will continue to affect the US.
How have the attacks affected oil prices?
Brent crude futures reached $110 a barrel on October 16, 2026, their highest level since May, as shipping tracker Kpler estimated oil flows through Hormuz had fallen to about 68% of their pre-war level.
Why does the Strait of Hormuz matter for global trade?
The strait is a chokepoint between the Gulf and the Gulf of Oman through which a large share of the world's seaborne crude oil and liquefied natural gas normally passes, so disruptions there directly affect global energy markets.
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