Finnish police announced Friday that their criminal investigation into the December 31 damage to two undersea telecommunications cables has concluded, with four people now formally suspected and the file sent to prosecutors for a decision on charges.
Authorities said the inquiry examined suspected aggravated criminal damage, attempted aggravated criminal damage and aggravated interference with telecommunications after two subsea cables running from Helsinki to Estonia were disrupted. The affected lines are owned by Elisa Oyj and Arelion Finland Oy, police said, and three of the four suspects are currently subject to travel bans.
The probe included interviews, underwater surveys and extensive inter-agency cooperation, police added. Finland seized the cargo ship Fitburg on December 31 while it was en route from Russia to Israel, and investigators suspected the vessel of damaging the cables; that suspicion remained part of the case when it was forwarded to prosecutors on Friday.
This development lands against a tense regional backdrop: the Baltic Sea has seen a string of power, telecom and pipeline outages since 2022, and NATO has stepped up frigates, aircraft and naval drones in the area. The two damaged cables provided direct links under the Baltic Sea between Finland and Estonia, amplifying the commercial and strategic consequences of the disruption.
There is a sharp gap between what police have established and what remains unknown. While authorities have named four suspects and tied the Fitburg to the incident, they have not specified which of the four — or whether any are crew members aboard the Fitburg — is being linked to the physical damage to the cables. That detail is central to any future criminal case but was not included in the investigative findings released Friday.
With the investigation closed, prosecutors now face the next legal turning point: whether to file charges and, if so, on which counts. Finnish police referred suspected aggravated criminal damage, attempted aggravated criminal damage and aggravated interference with telecommunications to prosecutors, but the decision to prosecute rests with the prosecutor's office. The existing travel bans on three suspects will limit movements while that assessment proceeds.
The unanswered question prosecutors must confront is direct and consequential: which of the four suspects, if any, should be charged with causing the cable damage and under which specific statutes? That determination will shape whether the case becomes a major criminal trial with national security overtones or a narrower proceeding tied to maritime operations and negligence.
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