Finnish Appeal Court Revives the Eagle S Cable Damage Case

The Helsinki Court of Appeal has overturned a district court ruling concerning the tanker Eagle S, which is suspected of involvement in severing subsea cables in the Gulf of Finland over Christmas 2024.

In early October 2025 the district court found that Finland did not have jurisdiction and dismissed the case. Prosecutors had alleged that crewmembers allowed the tanker's anchor to drag across the sea floor and damage five undersea cables, among them a key electricity interconnector between Finland and Estonia, on Christmas Day 2024.

The appeal court has now ruled that Finland does have jurisdiction, on the basis that the events directly affected the country. It also found that the central events described in the indictment fall outside the definition of a maritime accident under the UN Convention on the Law of the Sea, which means the convention does not restrict Finland's ability to pursue criminal charges.

That second finding is the one with reach beyond this case. UNCLOS reserves prosecution for casualties on the high seas to the flag state, and coastal states seeking to charge crews over cable damage have repeatedly run into that limit. Characterising the alleged conduct as something other than a maritime accident is the route around it, and it is now on the record in a Finnish appellate ruling.

The court has ordered the case reopened at district court level. The decision is not final and may still be taken to the Supreme Court if leave to appeal is granted.

A series of cable and pipeline incidents in the Baltic has been linked to vessels in the dark fleet, and the difficulty of establishing jurisdiction has been the practical obstacle to prosecution in almost every one. Baltic states have since expanded inspection and insurance-verification regimes for tankers transiting their waters, largely because criminal proceedings had proved so hard to sustain.