Two undersea telecommunications cables that were damaged in the Baltic Sea on Dec. 25 appeared to have been torn apart by a strong external force, Finland's Elisa said on Monday, adding that they had now been repaired.

Elisa has announced that it is experiencing faults with submarine cable connections between Finland and Estonia in the Gulf of Finland. Faults were detected on Wednesday evening (25th Dec) in two submarine cables owned by Elisa. Elisa has contacted the Finnish and Estonian authorities, who are investigating the matter.

Two telecom cables connecting Estonia and Finland have been repaired after suspected sabotage, Finnish operator Elisa said.

Finland's Elisa said on Monday that it had finished the repair of its two undersea telecommunications cables that were damaged in the Baltic Sea on Dec. 25. Finland on Dec. 26 seized the Eagle S tanke

Finnish police said on Tuesday they have recovered a lost anchor from the bottom of the ocean as part of an investigation of suspected sabotage against power and internet cables in the Baltic Sea. Finland last month seized the Eagle S tanker carrying Russian oil on suspicion that the vessel had damaged the Finnish-Estonian Estlink 2 power line and four telecoms cables by dragging its anchor across the seabed.

The Eagle S, thought to be part of Russia’s “shadow fleet,” was detained in December following suspected sabotage.

Northern European countries, part of the Joint Expeditionary Force, have enhanced the protection of underwater cables in the Baltic Sea. Artificial intelligence is being used to monitor the Russian fleet.