NATO and its eight Baltic Sea allies say they are stepping up efforts to deter 'any attempts at sabotage' in the wake of a series of incidents that have damaged key undersea power and telecommunications cables.

Finnish authorities believe that the anchor of the oil tanker Eagle S cut an electric cable between Finland and Estonia and damaged four data transmission cables on Christmas Day 2024. Read also: Putin's 'rusty tankers' threaten the Baltic Sea — German FM Baerbock Interrogations and other operational activities on board the vessel are ongoing,

Estonian naval ships are taking part in stepped-up patrols in the Baltic Sea by NATO countries after undersea power and communications cables have been damaged in recent months.

Officials say the damage to Estlink 2, a power connection with the capacity to provide half of Estonia's winter electricity needs, did not disrupt service, although it did drive up energy prices in the country and the other Baltic nations.

HELSINKI - Crew on board an oil tanker accused of sabotaging undersea power and communications cables in the Baltic Sea were poised to cut other cables and pipelines when Finnish authorities boarded the vessel last month,

Finnish investigators say the crew of an oil tanker accused of damaging undersea power and communication cables in the Baltic Sea were preparing to cut additional infrastructure before authorities intervened,