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Taiwan Intercepts Ship After Submarine Cable Break and Finds Only Chinese Citizens. Case Increases Tensions with Beijing
A recent incident involving the severing of a communication submarine cable in Taiwan has reignited concerns about possible acts of sabotage in the region.
Authorities detained a cargo ship with a Chinese crew, suspected of having caused the rupture of one of the main cables connecting the main island to the Penghu archipelago.
This episode adds to other similar incidents that have occurred in recent years, increasing tensions over control of critical digital infrastructure in sensitive areas. The submarine cable break is already under investigation, and the repercussions may further escalate the climate between Taiwan and China.
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Detention and Suspicions
The Taiwan Coast Guard identified the cargo ship as the only vessel present at the location at the time of the cable break.
According to Ou Yu-fei, spokesperson for the Coast Guard, the ship was a dilapidated cargo vessel with Chinese financing and was operating under a false registration number. Furthermore, the vessel had suddenly changed its name, which is common in covert operations.
The rupture occurred around 3:24 AM, shortly after a patrol had ordered the cargo ship to leave the area for being too close to the cables, with its anchor dropped.
Authorities believe the ship may have taken advantage of the moment to intentionally cause the damage, although investigations are still ongoing.
Importance of Submarine Cables
Taiwan relies heavily on submarine cables to maintain connectivity with its peripheral islands and the rest of the world. The severing of such a cable represents a serious problem for the country, especially as it occurs at a strategic point close to sensitive areas.
While damage of this type can also occur due to natural causes, such as earthquakes or material failures, the most common factor remains anchor drags or fishing nets. However, in this specific case, the signs of irregularities in the ship’s operation raised the hypothesis of sabotage.
Recent Submarine Cable Cutting Cases
The incident is not isolated. In 2023, a cable between Taiwan and the Matsu Islands was damaged, causing communication problems for weeks.
In early 2025, a digital cable connecting Taiwan to countries such as South Korea, Japan, China, and the United States also suffered damage, with suspicions of a Chinese ship’s involvement.
Another relevant episode occurred in November 2024, when two optical fiber cables in the Baltic Sea were cut. Investigations indicated the involvement of a vessel flying a Chinese or Russian flag.
These events have heightened alertness in Taiwan, leading the local government to intensify surveillance over its underwater infrastructure.
A list of over 50 ships considered suspicious has been compiled. Many of them sail under flags of convenience, such as the Togolese flag, used by the recently detained cargo ship.
China’s Reaction
The Chinese government responded to Taiwan’s accusations with criticism. According to Zhu Fenglian, spokesperson for the Taiwan Affairs Office, the island’s government is politically manipulating the situation. He stated that incidents involving submarine cables are common, occurring more than a hundred times a year worldwide.
Beijing accused the Democratic Progressive Party (DPP), currently in power in Taiwan, of exploiting the incident for political purposes and fueling tensions without presenting concrete evidence.
Taiwanese authorities rejected this version and insisted that the elements raised so far indicate deliberate action. For them, the ship’s presence at the site, its change of identity, and the history of other similar cases point to a possible attempt at sabotage.
Context of Tension
This type of incident occurs at a time of high tension between Taiwan and China. Beijing views the island as part of its territory and increases pressure through military actions, economic blockades, and cyber attacks.
Experts point to a trend in the use of maritime sabotage as an indirect means of influence. The destruction of critical digital infrastructure, such as submarine cables, can have severe effects without the need for direct confrontation.
Ongoing Investigation
The case has been forwarded to prosecutors for further investigation. Meanwhile, Taiwan continues to strengthen its maritime and underwater security measures in an attempt to protect its digital connections and prepare for new incidents.
The recent incident of the submarine cable cut highlights the vulnerability of submarine networks and how they can be targets in modern geopolitical disputes. In a scenario where hybrid warfare includes not only weapons but also technology and information, underwater cables gain increasing strategic importance.
With information from Xataka.
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