Finnish police have seized a ship suspected of damaging an underwater telecom cable between Helsinki and Tallinn. The damaged cable belongs to Finnish telecom group Elisa and lies in Estonia’s exclusive economic zone in the Gulf of Finland. The cable fault was detected early Wednesday. Authorities found the suspect vessel with its anchor down in Finnish waters and ordered it to anchor there. The ship’s identity was not revealed. Police are treating the case as “aggravated criminal damage, attempted aggravated criminal damage and aggravated interference with telecommunications.” National and international agencies, including Estonian authorities, have been notified. Since Russia’s invasion of Ukraine in 2022, damage to infrastructure in the Baltic Sea has raised fears of a “hybrid war.” Finland’s president Alexander Stubb said, “Finland is prepared for security challenges of various kinds, and we respond to them as necessary.”