Iran Seizes US Underwater Drone Amid Strait of Hormuz Conflict

The Islamic Revolutionary Guard Corps (IRGC) seized a US Navy Dive-LD autonomous underwater vehicle near the entrance to the Strait of Hormuz on September 8, 2026. Iranian state media characterized the capture as a result of a complex intelligence operation, describing the vessel as one of the smartest assets of the American military. The IRGC later claimed to have also struck a US unmanned surveillance vessel named Sildrone.

The United States Department of Defense disputed the IRGC's narrative, stating the drone was an older, expendable model that had malfunctioned and remained stranded for over a day before Iranian forces recovered it. The Pentagon asserted the device contained no classified information. Anduril Industries, the manufacturer of the Dive-LD, confirmed the loss but noted the system is designed to be attritable in dangerous environments.

This incident occurred during a period of intense escalation. The US sank five Iranian oil tankers near Kharg Island and Jask, labeling them a shadow fleet used to evade sanctions. In retaliation, the IRGC claimed attacks on 10 vessels. These clashes, combined with an ongoing Iranian blockade of the strategic waterway, have pushed Brent crude prices above $100 per barrel. While the US continues to provide an air defense umbrella for transiting ships, the United Nations has warned that the volatility threatens global economic stability.