Archive · 7 Oct 2026
Hormuz Tanker Attacks Reach Wartime Weekly High, Sources Say
Many ships carrying oil and gas pass through the Strait of Hormuz.
During the week from September 28 to October 5, security sources counted at least 12 attacks on tankers in and around the strait.
They said this was the highest weekly number since the US war with Iran began on February 28.
The International Maritime Organization counted nine vessel incidents in that week using its own records.
A maritime center also reported attempted attacks and other harassment, such as drones flying over ships and radio calls.
India said an unknown projectile hit a tanker named On Peace.
Twelve people on the ship were hurt.
Gulf oil exports had been above pre-war levels for about half of September, but attacks and logistical difficulties may make higher shipments harder to sustain.
Three maritime security sources counted at least 12 attacks on oil, LNG and LPG tankers around the Strait of Hormuz from September 28 to October 5.
The sources said the tally was the highest in any week since the US war with Iran began on February 28.
The International Maritime Organization recorded nine vessel incidents during the same week, compared with eight incidents in the week of July 13.
The US Navy-led Joint Maritime Information Center reported continuing attacks, attempted attacks and harassment, including drone overflights, surveillance and VHF radio hailing.
India said 12 crew members were injured when an unknown projectile struck the Panama-flagged oil tanker On Peace in the strait.
- Who
- Oil, LNG and LPG tankers and their crews; maritime security sources and shipping agencies reported the incidents.
- What
- At least 12 tanker attacks were reported in one week; India said 12 crew members were injured when On Peace was struck.
- When
- September 28–October 5; the report was published October 7.
- Where
- In and around the Strait of Hormuz.
- Why
- The Joint Maritime Information Center said the activity demonstrated Iran’s intent to assert a presence along key transit lanes and maintain pressure on transiting vessels.
Maritime Security Sources
International Maritime Organization
Reported incidents during September 28–October 5
Maritime Security Sources
Three maritime security sources counted at least 12 attacks on oil, LNG and LPG tankers around the Strait of Hormuz.
International Maritime Organization
The IMO's separately collated data recorded nine incidents involving vessels in the same week. The report says the agency generally takes longer to verify and officially record incidents.
- Reporting period
- September 28–October 5
- Attacks counted by maritime security sources
- At least 12
- IMO incidents in the same week
- Nine
- Closest comparable IMO weekly total
- Eight incidents in the week of July 13
- Vessel struck
- On Peace, a Panama-flagged oil tanker
- Crew injured
- 12, according to India's foreign ministry
- Export context
- Gulf oil exporters topped pre-war levels for about half of September
