| Date | 12 May 2019 |
| Tracker | Strait of Hormuz Tensions |
| Type | Strike |
| Location |
Fujairah, United Arab Emirates
25.12, 56.33 (approximate) |
On May 12, 2019, four commercial vessels anchored off Fujairah, United Arab Emirates, were damaged in a coordinated sabotage operation: the Saudi-flagged tankers Al Marzoqah and Amjad, the Norwegian-flagged Andrea Victory, and the Emirati bunkering vessel A. Michel. Each ship sustained a hole below the waterline near the stern, consistent with limpet mines attached by divers. No casualties or oil spills were reported. A UAE-led investigation with US, Saudi and Norwegian input found a 'high degree of sophistication' pointing to a state actor without naming one; Washington later blamed Iran, which denied any involvement.
| Series | That day | Prior 30-day avg | Week after vs before |
|---|---|---|---|
| Transits | 85 +17% | 72.9 | +8% (502 → 543) |
| Tankers | 57 +33% | 43.0 | +12% (300 → 335) |
| Cargo ships | 28 -6% | 29.9 | +3% (202 → 208) |
| Date | Type | Incident |
|---|---|---|
| 13 Jun 2019 | Strike | Front Altair and Kokuka Courageous tankers set ablaze in Gulf of Oman attacks blamed on Iran |
| 20 Jun 2019 | Interception | Iran shoots down US Navy RQ-4 Global Hawk drone over Strait of Hormuz |
| 19 Jul 2019 | Interception | Iran seizes British tanker Stena Impero in Strait of Hormuz, retaliating for Gibraltar's Grace 1 seizure |
| 4 Jan 2021 | Interception | Iran seizes South Korean tanker Hankuk Chemi near the Strait of Hormuz |
IMF PortWatch data published on GMN's Strait of Hormuz tracker shows commercial ship transits averaging 3.17 a day over 1-6 September 2026, against 85.5 a day in 2025; other counters read higher, but every independent count is a small fraction of the pre-war norm.
Iran's Revolutionary Guard said on 8 September 2026 it had recovered a US Navy Anduril Dive-LD autonomous underwater vehicle at the entrance to the Strait of Hormuz; US Central Command said the vehicle had malfunctioned more than a day earlier, and Anduril confirmed the loss.
The United States decommissioned its four Bahrain-based Avenger-class mine hunters in September 2025 and shipped the hulls home in January 2026. When Iran began mining the Strait of Hormuz two months later, according to CENTCOM, the Navy had to sail two of its last four minesweepers from Japan.