UKMTO says 11 ships attacked in week to 4 Nov in Hormuz, Arabian Gulf

UKMTO recorded 11 attacks on commercial shipping during the seven days ending November 4. Eight occurred in the Strait of Hormuz and three in the Arabian Gulf. Three vessels sank, five required assistance, and three continued their voyages.

The incidents included a dhow struck on November 2, killing one crew member; local authorities rescued 13 others. A Panama-flagged supply vessel was hit on November 1 and reportedly sank after another merchant vessel rescued its crew. On November 4, a Marshall Islands-flagged tanker was hit by two projectiles and drifted until local authorities provided assistance.

The reports show varied outcomes, from continued voyages to deaths, rescues, sinking, and loss of control. All three projectiles or projectile attacks described were unidentified. The pattern matters because commercial ships faced repeated danger across both connected waterways within one week, while crews depended on nearby vessels and authorities for survival and support.

The Strait of Hormuz is a narrow maritime passage at the entrance to the Arabian Gulf. It connects the Gulf with the Gulf of Oman and the Arabian Sea, providing ships with access to the wider Indian Ocean. In everyday terms, it functions as the gateway between the enclosed gulf and open water.

That geography explains why the article treats the strait and Arabian Gulf together. Ships can be attacked inside the strait or farther west in the gulf, as shown by UKMTO’s eight reported attacks in the strait and three in the Arabian Gulf. Vessels also travel in both directions through the passage.

The strait matters because many commercial ships must use it to reach or leave Gulf ports. The article reports 325 transits in one week, with 170 outbound and 155 inbound movements. Around 80 percent involved energy carriers, making safe passage important for regional trade and energy transport.

A total of 325 weekly transits is substantial in raw terms: ships crossed the Strait of Hormuz 325 times in seven days. The figure included 170 outbound and 155 inbound movements. It also exceeded the previous week’s 277 transits, so activity was recovering or fluctuating rather than stopping completely.

The more revealing comparison is with pre-conflict traffic. UKMTO said current traffic remained approximately 65 percent below those earlier levels. This means the strait was handling only about 35 percent of its former activity, although the article does not provide the exact pre-conflict weekly total. The shortfall indicates that many operators were delaying, rerouting, or otherwise limiting voyages.

The figure therefore shows both continued use and serious disruption. Energy carriers still made up around 80 percent of transits, and ships continued using the route despite attacks. However, the reduced baseline suggests lasting operational, security, and commercial pressure on maritime traffic.

The United Kingdom Maritime Trade Operations, or UKMTO, collects and shares maritime security information. Its weekly overview compiles reported attacks, vessel outcomes, and traffic patterns. That gives ship operators and authorities a common picture of danger in busy waters such as the Strait of Hormuz.

The Automatic Identification System, or AIS, is a radio-based system that broadcasts a ship’s identity, position, course, and movement information. In the article, AIS observations showed 71 transits, up from 64 the previous week. This provides a direct view of vessels broadcasting their movements, while other transits may be tracked through different reporting channels.

These tools complement each other rather than doing the same job. UKMTO records incidents and assistance needs; AIS reveals movements and route choices. UKMTO noted that most AIS-broadcasting ships continued using the Iranian route, even as use of the southern route increased. Together, the data help identify changing risks and traffic behavior.

When ships are attacked, the immediate effects include deaths, injuries, rescues, damage, delays, and loss of control. In the reported week, one tanker was left drifting, five vessels needed assistance, and three sank. Such incidents interrupt normal schedules and can make operators reconsider whether the route is safe enough to use.

Avoiding the strait adds distance or requires ships to wait, use another route, or transfer cargo through different infrastructure. Those changes consume more fuel and time and may require extra security, insurance, crew planning, and port coordination. The article does not provide transport costs or delivery shortfalls, but these are standard operational consequences of longer or disrupted voyages.

The energy effect can be large because around 80 percent of strait transits involved energy carriers. Even with 325 weekly transits, traffic remained 65 percent below pre-conflict levels. Continued attacks or avoidance could therefore prolong delays, reduce available shipping capacity, and increase pressure on energy transport costs.

The article identifies a southern route as an alternative to the Iranian route through the Strait of Hormuz area. In broader maritime practice, ships may also take longer routes around the Arabian Peninsula, where geography and available ports permit. These options reduce dependence on the main passage but do not provide an equally direct substitute for every voyage.

The trade-off is distance. A longer route generally requires more fuel, sailing time, crew hours, and planning. It may also face limits from vessel size, port capacity, weather, insurance, and the need to connect with cargo facilities. The article does not quantify these limits, so their exact impact cannot be measured here.

UKMTO reported increased use of the southern route, showing that some operators were changing course. Yet most ships broadcasting AIS continued using the Iranian route. That suggests alternatives were available but less attractive, less practical, or not needed by every vessel despite the reported attacks.

A maritime chokepoint is a narrow waterway that many ships must use to move between larger bodies of water. The Strait of Hormuz fits that definition because it controls the maritime entrance to and exit from the Arabian Gulf. Its limited width concentrates traffic and makes route security especially important.

Control or disruption matters because ships cannot simply spread across many equally direct channels. The article recorded 325 transits in one week, including 170 outbound and 155 inbound movements. Around 80 percent involved energy carriers. An attack can therefore affect individual crews while also delaying a significant stream of commercial transport.

The reported figures show the wider effect already underway. Traffic was approximately 65 percent below pre-conflict levels, even though weekly movements rose from 277 to 325. Ships continued to pass, but reduced activity and increased southern-route use indicate that security conditions were reshaping movement through this economically important passage.