The three Baltic states disconnected their electricity systems from Russia's power grid on Saturday, aiming for closer EU integration of the countries and boost security, the region's operators said.
NATO countries will deploy frigates, patrol aircraft and naval drones in the Baltic Sea to protect critical infrastructure and act against ships suspected of posing security threats, members said.
Finnish police said on Tuesday they had recovered a lost anchor from the seabed as part of an investigation of suspected sabotage against power and internet cables in the Baltic Sea.
NATO to boost Baltic Sea presence after suspected sabotage of undersea power cable and four internet lines, while Estonia launched a naval operation to guard a parallel electricity link.
Estonia accused Russia of violating international airspace regulations by interfering with GPS signals and it will take up the matter with its NATO and European Union partners.
Russia is preparing for a military confrontation with the West within the next decade and could be deterred by a counter build-up of armed forces, Estonia's Foreign Intelligence Service said
