The Nordic country has opened an investigation into the damage, just weeks after NATO stepped up its military presence in the area following a series of similar incidents.

Swedish authorities seized the Vezhen, sailing under the flag of Malta and registered with a Bulgarian shipping company, on Sunday over suspected sabotage of an underwater cable. View on euronews

After a series of suspected undersea cable cuttings, NATO has launched a new surveillance and deterrence mission to protect critical infrastructure under the Baltic Sea.