Eleven severed cables, one seized tanker loaded with surveillance gear, and a Kremlin spokesman who calls every accusation “absurd” — even as some Western officials now say the damage may just be accidents.
Since October 2023, at least eleven undersea cables and pipelines in the Baltic Sea — carrying power, internet traffic, and gas between NATO and EU member states — have been damaged in incidents authorities suspect involved vessels from Russia’s so-called shadow fleet, an aging armada of tankers with obscured ownership that Moscow uses to move sanctioned oil while evading Western enforcement. The most scrutinized case, the December 2024 severing of the Estlink 2 power cable and several data cables between Finland and Estonia, led Finnish authorities to seize the tanker Eagle S, board it by helicopter-deployed special forces, and reportedly find it equipped with surveillance gear inconsistent with a normal commercial vessel. Russia has denied any involvement in every incident, with Kremlin spokesman Dmitry Peskov calling the accusations absurd. Complicating the case for deliberate Russian sabotage, several Western intelligence assessments reported in early 2025 concluded some of the damage more likely resulted from poor seamanship — dragged anchors on aging, under-maintained ships — than a coordinated campaign, illustrating how contested attribution itself can function as a strategic asset for Moscow.
A Pattern of Severed Cables
Since October 2023, when the Balticconnector gas pipeline and adjacent telecom cables between Finland and Estonia were damaged by a dragging ship anchor, at least eleven Baltic Sea cables have been damaged in incidents drawing Russian shadow-fleet suspicion. In November 2024, two fiber-optic cables connecting Finland to Germany and Sweden to Lithuania were severed within a day of each other; German officials publicly called the damage sabotage. The following month, the Estlink 2 power interconnector between Finland and Estonia — one of only two links carrying electricity between the countries — failed abruptly on December 25, 2024, alongside several data cables nearby, according to the detailed incident record drawn from contemporaneous Finnish and Estonian official statements.
The Eagle S Seizure
Finnish authorities traced the Estlink 2 damage to the tanker Eagle S, part of Russia’s shadow fleet — vessels, often decades old and flagged in third countries with minimal oversight, that Russia relies on to move sanctioned crude oil while obscuring ownership chains back to Moscow. Finland’s Border Guard pursued the tanker, and armed special forces boarded it by helicopter once it entered Finnish territorial waters — the first time European authorities had boarded a suspected shadow-fleet vessel in the Baltic. Reporting on the seized ship found investigators suspected it had dragged its anchor across the seabed for tens of miles, and separate reporting indicated the vessel carried surveillance equipment inconsistent with normal commercial operation. A Finnish court subsequently upheld the tanker’s continued seizure pending the investigation.
The Kremlin’s Response
Russia has denied responsibility for every incident in the pattern. Asked directly about the Eagle S case, Kremlin spokesman Dmitry Peskov told reporters it was “quite absurd to continue to blame Russia for everything without any grounds,” a formulation that treats the volume of accusations, rather than their individual evidentiary basis, as itself proof of Western bias — a rhetorical move that sidesteps engaging with the specific navigational and ownership evidence Finnish investigators had assembled.
A Genuinely Contested Case
Unlike Vrbětice or the Skripal poisoning, where physical and forensic evidence eventually produced broad Western consensus on Russian responsibility, the Baltic cable pattern has not resolved as cleanly. By January 2025, several U.S. and European intelligence officials told the Washington Post that an emerging assessment held that at least some of the damage more likely resulted from maritime accidents — aging, poorly maintained ships dragging anchors through negligence rather than intent — than a coordinated Russian sabotage campaign, even as individual officials, including Finnish President Alexander Stubb and German Defense Minister Boris Pistorius, continued to describe specific incidents as deliberate. This divide matters analytically: if Russia’s shadow fleet creates enough ambiguous, physically plausible accidents near critical infrastructure, it may achieve a disruptive and intimidating effect on European infrastructure confidence regardless of whether any individual incident is proven deliberate — and contested attribution itself becomes strategically useful to Moscow, since no single incident can be conclusively pinned on the Kremlin even as the pattern accumulates.
European Response and Outcome
NATO responded by launching Baltic Sentry in January 2025, deploying additional ships, aircraft, and naval drones to patrol the region, while the European Union introduced an Action Plan on Cable Security the following month, focused on prevention, detection, and faster response to future incidents, as RFE/RL reported. Finland has since charged the Eagle S’s officers in connection with the Estlink 2 damage. Regardless of how each individual case is ultimately resolved, the broader pattern has already reshaped European defense posture in the Baltic, demonstrating that Russia’s shadow fleet functions as a dual-use tool — sanctions evasion and a standing source of plausibly deniable infrastructure risk — whether or not every cut cable can be proven a deliberate act.
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