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Iran ramps up attacks on commercial shipping in Strait of Hormuz

19 Oct 2026·2 min read

Iran’s escalating campaign against commercial shipping has pushed attacks around the Strait of Hormuz to a record monthly high, with a widening range of vessels targeted as Tehran seeks to reinforce its leverage over maritime trade. According to Lloyd's List, Iran’s campaign has seen an unprecedented level of activity, driven by new tactics that include using unarmed observers on small boats for target identification.

New tactics in play

A US military official confirmed to MarineInsight and SeaNewsTürkiye that after the destruction of much of Iran’s radar capabilities, the Iranian Islamic Revolutionary Guard Corps (IRGC) began employing unarmed spotters in small vessels to identify potential targets. An unnamed US military source said last week's incident involved Iranian spotters on a dhow relaying target information to the IRGC. US forces encountered and destroyed the boat without causing any casualties.

One senior Iranian official, speaking to Reuters as part of Marine Insight’s reporting, stated that these new tactics included both changes in type and frequency of attacks, aimed at influencing the outcome of the upcoming US midterm elections. “The aim is to frustrate efforts by the United States and its allies to bring down global oil prices,” said the source.

Record-breaking attacks

The increased intensity of attacks has led to a record monthly high in incidents around the Strait of Hormuz, according to Lloyd's List. The publication noted that the attacks have now targeted a wider range of vessels, indicating Iran’s broader campaign against commercial shipping. In the last 48 hours alone, at least five attacks and security incidents involving tankers and other commercial vessels were recorded by maritime security sources and records from UK Maritime Trade Operations (UKMTO).

Impact on oil prices

The heightened tensions have already influenced global oil markets. The Iranian military’s new tactics are aimed at keeping oil prices high to exert pressure on the United States and its allies, as reported by Offshore Engineer. US military officials stated that Iran's ability to target ships through small boats has made it more challenging for commercial vessels to navigate safely in the area.

Practical consequences for operators

The increased risk of attacks poses significant challenges for shipping companies operating in and around the Strait of Hormuz. Vessels must now be prepared for a higher likelihood of encountering hostile activity, requiring enhanced security measures and more frequent risk assessments. The potential for delays and detours could also increase operational costs, impacting supply chains and logistics planning.

The ongoing situation highlights the critical importance of robust maritime security in maintaining global trade flows and economic stability. As Iran continues to escalate its attacks, international cooperation and vigilance will be essential in ensuring safe passage through the Strait of Hormuz.

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This article was produced with the assistance of an AI system and reviewed by the editorial team before publication. Sources are listed below.

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