Iran’s IRGC Claims Second Capture of U.S. Underwater Drone in Hormuz Strait

Iran’s Islamic Revolutionary Guard Corps announced on September 27 that it had captured a second American unmanned submarine in the Strait of Hormuz, according to multiple reports from the IRGC and regional media outlets ^[1][2]. The incident marks an escalation in a pattern of claimed naval confrontations in the strategically vital waterway.

The IRGC identified the seized vessel as a RIMOS 600-type unmanned underwater drone, describing it as an advanced reconnaissance platform ^[2]. The capture follows an earlier reported seizure of a similar U.S. drone submarine by Iranian forces in September, though independent verification of either incident remains limited ^[3][4].

The Strait of Hormuz, through which roughly one-third of global maritime oil trade passes, has become an increasingly contested zone. The IRGC has intensified operations in the waterway in recent months, with reports indicating the deployment of fast-attack boats, anti-ship cruise missiles, and drone systems targeting vessels ^[5]. One report claimed the IRGC had launched cruise missiles at ships attempting to transit the strait without permission, though specific casualty or damage figures were not independently confirmed ^[6].

In July, the IRGC issued a statement asserting control over the Strait of Hormuz and warning against foreign intervention, declaring the waterway would remain closed to traffic as long as what it characterized as American threats continued ^[7]. The organization has since escalated rhetoric about its military capabilities and readiness, with statements emphasizing advanced sensor systems and data processing on its submarines ^[8].

The U.S. Navy has not issued public statements confirming the loss of either drone or providing details about the incidents. International observers have noted the strategic importance of the Strait of Hormuz to global energy security, with any sustained disruption carrying significant economic implications ^[9].

The escalating pattern of claimed Iranian naval operations reflects broader regional tensions. The IRGC has simultaneously increased military rhetoric regarding what it describes as threats from U.S. and Israeli forces, while signaling both military readiness and, in some statements, openness to negotiation ^[10].

Regional analysts note that the Strait of Hormuz remains one of the world’s most strategically sensitive maritime passages, with control over its waters carrying geopolitical weight far beyond the immediate region. The frequency of reported incidents – whether confirmed or contested – underscores the fragility of maritime stability in the Persian Gulf.