FBI Warns Iran Could Launch Drone Attack on California From Offshore Vessel

The FBI issued a public warning that Iran could carry out a drone attack on California launched from an offshore vessel, citing recent upticks in Iranian-backed and Iranian-origin unmanned aerial system activity and the feasibility of maritime launch platforms.

“The warning came in a bulletin that was reviewed by ABC News”

ABC7 New York

U.S. officials described intelligence showing that Iran and its proxies have explored ways to use civilian ships and small vessels to deploy drones and precision-guided munitions at distance, raising concern about the vulnerability of U.S. coastal waters.

ABC7 New York

The advisory prompted interagency alerts across law enforcement and maritime authorities, highlighting that the threat, while not tied to a specific imminent plot, was credible enough to warrant increased monitoring and maritime security measures.

Officials described specific methods of concern: small commercial or fishing vessels operating off the California coast could covertly host and launch drones, including loitering munitions and sea-skimming unmanned aerial vehicles, which would complicate detection and attribution.

Command-and-control links could be relayed via satellite or proxy networks, allowing Iran or affiliated groups to attempt stand-off strikes without direct presence in U.S. territorial waters.

Antena 3

Maritime security experts and coast guard units were urged to increase patrols, inspect suspicious vessels, and share telemetry and radar data with federal investigators.

The advisory framed Iran as the primary actor of concern while noting the possibility of proxy actors acting on Tehran's behalf; U.S. policymakers pointed to past incidents in the Red Sea and Gulf showing Iranian use of drones and unmanned weaponry in theater.

“The FBI warned California police departments that Iran could attack the U”

Diario AS

Some outlets stressed that while intelligence suggested capability and intent, no specific, credible plot targeting California had been publicly confirmed, and the FBI emphasized its alert was preventive.

Analysts cautioned that conflating capability with imminent intent could inflame tensions and complicate diplomatic channels.

California state and local officials, including port and harbor authorities, were briefed and began coordinating with federal agencies; some ports increased security screenings and restricted certain vessel movements.

Public guidance encouraged mariners to report suspicious activity and for coastal communities to stay alert to unusual low-flying drones or maritime behavior.

Fox Business

Lawmakers called for hearings and asked for classified briefings while also debating the appropriate balance between transparency and protecting sensitive intelligence sources and methods.

The advisory has broader implications for U.S. maritime security and diplomacy, prompting renewed focus on interdiction, international maritime law enforcement cooperation, and counter-drone capabilities at sea.

“The FBI has warned about possible Iranian plans to attack California with drones Police sources with counterterrorism experience clarified that the alert lacks credible information about an imminent attack and is a routine precautionary notice”

Heraldo de Aragón

Some commentators urged accelerated investment in coastal radar, electronic warfare, and unmanned-systems defenses, while others warned about the risk that heightened alerts could be exploited politically or provoke retaliatory measures.

Heraldo de Aragón

Iran and its allies have not acknowledged any intent to strike U.S. soil; Tehran has, in other reporting, denied planning attacks on American territory.

The situation remains fluid as agencies corroborate intelligence and monitor maritime traffic.