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.

As apparent acts of sabotage cut undersea data cables around the world, NATO held its first demonstration of a project to quickly reroute crucial communications to satellite internet

NATO warships began patrolling the Baltic Sea this week. Some of the ships are anchored in Tallinn's Mine Harbor, ERR reports. Warships have begun patrolling as part of the Baltic Guard program. Three NATO ships anchored in Tallinn.