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.

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

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.