IRGC Announces Seizure of U.S. Unmanned Submarine in Strait of Hormuz

by Choi Seoyoon

Published 27 Sep.2026 20:07(KST)

Claimed "Securing the 'Remus 600' on Recon Mission"
Second Seizure This Month Following Previous Incident on the 8th
Analysis of Device Data Underway

The naval forces of Iran's Islamic Revolutionary Guard Corps (IRGC) announced on September 27 (local time) that they had seized an advanced unmanned submarine belonging to the U.S. military in the Strait of Hormuz.

In a statement released the same day, the IRGC Navy declared, "Based on a complex and sophisticated joint operation utilizing information superiority and electronic warfare, we have successfully captured an advanced U.S. unmanned submarine that was conducting reconnaissance activities in the Strait of Hormuz."

A photo of a US military unmanned submarine allegedly seized by the Iranian Revolutionary Guard Navy. Captured from SEPA News Telegram channel.

The equipment seized on this occasion is reported to be a 'Remus 600’ model, an autonomous unmanned underwater vehicle primarily operated by the U.S. Navy and related forces.

The Revolutionary Guard explained that, after securing the submarine, they are carrying out processes to extract and recover its internal data.

They continued, "We declare the closure of the Strait of Hormuz," adding, "We will respond firmly to dangerous maneuvers and unauthorized passage within the strait."

The IRGC also previously claimed on the 8th of this month that it had seized a U.S. unmanned submarine, the 'Dive-LD', at the entrance to the Strait of Hormuz.

A U.S. unmanned submarine claimed to be seized by the Iranian Revolutionary Guard Navy. Screenshot from Sepa News Telegram channel.

The seized Remus 600 is a torpedo-shaped unmanned submarine approximately 3.25 meters in length and is capable of descending to depths of up to 600 meters to conduct missions such as mine detection, seabed terrain surveying, and reconnaissance.