China warns of alleged espionage by sensor-equipped sea creatures

The aim of the espionage activities was to create "underwater maps" in order to "identify weak points in China's coastal defense." The goal was to create underwater maps. According to the ministry, such animals had been discovered in certain sea areas.

What technology is mentioned?

In "certain waters," sea creatures equipped with sensors — such as turtles and fish — had been discovered, allegedly deployed on behalf of foreign services. The government is warning of suspected underwater espionage by sensor-equipped marine life.

The ministry also pointed to "novel espionage equipment" used by international intelligence agencies to gather important data beneath the ocean's surface. In addition, hostile intelligence services had deployed, among other things, buoys fitted with high-precision sensors as well as devices hidden on cargo ships in order to monitor activity in ports in real time.

Background and context

The warning is part of a series of ministry publications in which Beijing issues irregular warnings about alleged foreign espionage operations on Chinese territory. The truth of the specific allegations could not initially be independently verified.

The People's Republic itself maintains an extensive network of surveillance technology in the South China Sea and has repeatedly clashed there with neighboring states such as the Philippines and Vietnam. The place string of the report therefore points to the capital cities of Beijing, Manila, and Hanoi. Observers also see the warning as a signal to the domestic population about the reach of alleged enemy reconnaissance.

Reactions and open questions

Marine biologists and independent experts have so far not commented on the specific allegations. In principle, the use of animals for reconnaissance purposes is known from military history, although the technical feasibility of covert sensors on living turtles or fish in open waters is considered extremely challenging.

The ministry announced it would step up monitoring of its own coastal waters. No concrete measures or arrests related to the alleged incidents were initially reported. Nor did the ministry name any foreign services or states in the statement.