17JUN

JMIC warns of renewed mining in Hormuz

3 min read

10:21UTC

The US-led naval reporting cell called more deliberate attacks in Hormuz highly likely and warned of renewed mining, eight days after dismissing the Guards' mine claims.

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Key takeaway

The JMIC now warns of renewed Hormuz mining after dismissing Iran's claims a week earlier.

The Joint Maritime Information Center (JMIC), the US-led naval reporting cell, rated the threat in the Strait of Hormuz "severe" in its advisory of 25 October, as reported by gCaptain, and called further deliberate attacks "highly likely"⁠¹. It also warned of "possible renewed mining activity", eight days after saying there was "no substantiation" for the IRGC's mine claims.

The official tallies of the campaign at sea do not agree. The JMIC counts 156 confirmed incidents in the region since 1 March; the UN's shipping agency, the IMO, counted 119 by 22 October. The IMO also recorded 29 attacks on shipping from 1 to 22 October, more than in any month since March, S&P Global reported⁠².

Traffic has not come back to match. US-facilitated transits ran at about 34 a day from 22 to 24 October, 101 in all, plus single-digit crossings outside the US system, against about 138 ships a day of all traffic in 2025⁠³. About 492 ships were waiting outside the strait on 25 October, mostly off Fujairah and Khor Fakkan on the UAE's east coast, according to the same advisory.

Deep Analysis

In plain English

Two bodies count attacks on ships near the strait of Hormuz. One is a naval reporting office led by the United States. The other is the International Maritime Organization, the United Nations agency for shipping. The naval office now rates the danger "severe" and warns that Iran may be laying sea mines again. The UN agency says October has had more attacks than any month since March. About 492 ships are waiting outside the strait, mostly off the United Arab Emirates, rather than risk the crossing.

Deep Analysis

Root Causes

Gulf crude has only two pipeline routes that avoid the strait: Saudi Arabia's East-West line to Yanbu on the Red Sea, and the United Arab Emirates' line from Habshan to Fujairah. Neither can carry most Gulf exports, so ships must either cross Hormuz or wait.

Permits also drive the queue at Fujairah. Ships that will not seek the Persian Gulf Strait Authority's permission, and cannot join the US-facilitated transits, have nowhere to go but anchor.

What could happen next?

Risk
A warning of renewed mining may push more owners to anchor rather than cross, lengthening the queue off Fujairah.
Opportunity
Fujairah's anchorage, bunkering and pipeline terminal gain business while the strait stays contested.

Source Landscape

This story draws on neutral-leaning sources from United States

United States

Primary parallel: When the Ever Given blocked the Suez Canal in March 2021, about 400 ships queued at both ends. The queue cleared within about a week of the ship being refloated, because the cause was a single physical blockage.

Counter-parallel: After Houthi attacks began in the Red Sea in late 2023, most container lines did not queue; they sent ships round the Cape of Good Hope. A Gulf loading port has no such detour, so ships bound for Gulf cargoes wait off Fujairah and Khor Fakkan instead.

Ships at anchor still cost their charterers daily hire. With 492 ships waiting, demurrage, the fee for delay, becomes a large hidden cost of the conflict, spread across owners, traders and the refiners that pay for late cargoes.

Structurally, Fujairah gains. As the main anchorage and bunkering port outside the strait, and the end point of the Habshan pipeline, it captures fuel sales and storage business that a normal Gulf crossing would not need.

Consensus view: The JMIC advisory of 25 October, as reported by gCaptain, moves the cell from doubting Iran's mine claims to warning of "possible renewed mining activity". A naval cell that a week earlier saw "no substantiation" now plans for mines without confirming one, which is a change in posture, not in evidence.

Counter-view: The International Maritime Organization, the UN shipping agency, counts differently: 119 confirmed incidents by 22 October against the JMIC's 156 since the war began. The gap reflects what each body counts as confirmed. A UN agency answerable to all flag states, Iran's among them, sets a higher bar than a US-led cell advising its partners' fleets.

Key tension: Whether shipowners and insurers set their risk by the US-led cell's broader count or by the UN agency's stricter one.

First Reported In

Update #183 · Iran threatens legal action on Sinokor ships

gCaptain· 29 Oct 2026

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Causes and effects

Caused by

UKMTO confirms one tanker hit near Bukha

The JMIC warned of renewed mining eight days after finding no substantiation for IRGC mine claims.

Occurred 21 Oct 2026

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This Event

JMIC warns of renewed mining in Hormuz

The JMIC has moved from rejecting Iran's mine claims to warning that mining may resume.

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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.