NATO allies met on Dec. 30 to address the security of critical infrastructure in the Baltic Sea, following damage to undersea cables connecting Estonia and Finland several days earlier.

General Mark Rutte says the military alliance will step up patrols in the Baltic Sea area as Finnish investigators work to establish whether a ship linked to Russia sabotaged undersea cables there this week.

Finland’s national grid operator, Fingrid, has requested a court order to seize the tanker Eagle S, which is suspected of deliberately damaging the Estlink 2 power cable. Finnish authorities recently identified the Eagle S,

The damaged cable is one of several recent incidents in the Baltic Sea under investigation as possible acts of sabotage.