TL;DR

Finnish authorities seized a Saint Vincent and the Grenadines‑flagged cargo vessel, the Fitburg, after an undersea telecommunications cable linking Helsinki and Tallinn was damaged. Fourteen crew members were detained and authorities are investigating the incident as serious criminal interference with telecommunications.

What happened

Finnish police say they took control of a cargo ship after an undersea telecom cable between Finland and Estonia was found damaged. Officers located the vessel with its anchor chain lowered in Finnish waters while the damaged section of cable lay in Estonian waters. The ship was later identified as the Fitburg, registered to Saint Vincent and the Grenadines. Authorities detained all 14 crew members, who are reported as citizens of Russia, Georgia, Kazakhstan and Azerbaijan. Finnish officials ordered the ship to stop and to raise its anchor before boarding; Finnish media reported that special police units and the coast guard carried out the seizure from helicopters. The telecom provider Elisa detected faults on the link. Finnish prosecutors have opened investigations on charges including aggravated criminal damage and aggravated interference with telecommunications. Estonian authorities said national connections remained backed up via other submarine and terrestrial cables.

Why it matters

  • Undersea cables carry the bulk of international internet and communications traffic; damage can disrupt services and national connectivity.
  • The incident adds to a pattern of cable damage in the Baltic Sea since 2023, increasing concerns about the vulnerability of critical infrastructure.
  • Legal and jurisdictional questions around incidents at sea have previously complicated prosecutions and cross‑border investigations.
  • Governments and NATO have been moving to strengthen protection of submarine infrastructure; this event may accelerate those efforts.

Key facts

  • The vessel named by police is the Fitburg, flagged to Saint Vincent and the Grenadines.
  • Authorities found the ship with its anchor chain lowered in Finland’s waters; the damaged cable section was in Estonian waters.
  • All 14 crew members were detained; their reported nationalities are Russian, Georgian, Kazakh and Azerbaijani.
  • Finnish police instructed the ship to stop and raise its anchor before boarding; media reported deployment of special forces and coast guard from helicopters.
  • Elisa, which operates the Helsinki–Tallinn link, detected faults after the damage occurred.
  • Estonia stated its connections remained supported by other sea and land cables despite the damage.
  • A second cable, owned by Swedish company Arelion, was also reported damaged.
  • Finnish authorities are investigating under statutes that include aggravated criminal damage and aggravated interference with telecommunications.
  • At least 10 undersea cables in the Baltic Sea have been cut or damaged since 2023, according to the reporting.
  • The Fitburg was reported by MarineTraffic to have departed St. Petersburg bound for Haifa in Israel prior to the incident.

What to watch next

  • Results of the Finnish criminal investigation and any formal charges or indictments resulting from the seizure.
  • Technical assessments of the extent of damage to the affected cables and timelines for repair and service restoration.
  • Potential diplomatic or security follow‑ups between Finland, Estonia and other regional partners; not confirmed in the source.
  • Whether NATO or EU agencies announce further protective measures for undersea infrastructure; not confirmed in the source.

Quick glossary

  • Undersea (submarine) cable: A fiber‑optic cable laid on or beneath the seabed that carries telecommunications and internet traffic between countries and continents.
  • Anchor chain: The chain connecting a vessel’s anchor to the ship; if dragged, it can catch on seabed structures including cables.
  • Aggravated criminal damage: A legal classification for severe or deliberate destruction of property that carries heightened penalties under criminal law.
  • Telecommunications provider: A company that operates networks and services for voice, data and internet connectivity.
  • Shadow fleet: A term used to describe vessels alleged to operate on behalf of or in support of a state while obscuring ownership or affiliations.

Reader FAQ

Which ship was detained?
Finnish police named the vessel as the Fitburg, registered in Saint Vincent and the Grenadines.

Were any crew members detained?
Yes. Authorities detained all 14 crew members; their reported nationalities include Russia, Georgia, Kazakhstan and Azerbaijan.

Was the damage to the cable confirmed to be deliberate or linked to a state actor?
Not confirmed in the source.

Did the damage cause widespread service outages?
Elisa detected faults on the link, but Estonia said its networks remained backed up by other sea and land cables, maintaining continuity of services.

Finnish authorities have taken control of a vessel suspected of damaging a submarine telecommunications cable between Helsinki and Tallinn, on Wednesday, December 31. Gulf of Finland Coast Guard (SLMV)/Anadolu/Getty Images…

Sources

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