NATO said on Friday it would boost its presence in the Baltic Sea after the suspected sabotage this week of an undersea power cable and four internet lines, while alliance member Estonia launched a naval operation to guard a parallel electricity link.

NATO Secretary-General Mark Rutte says the military alliance will step up patrols in the Baltic Sea area as Finnish investigators work to establish whether a ship linked to Russia sabotaged undersea cables there this week.

NATO said on Friday it would boost its presence in the Baltic Sea after the suspected sabotage this week of an undersea power cable and four internet cables, while alliance member Estonia launched a naval operation to guard a parallel electricity link.

NATO Secretary-General Mark Rutte on Friday said the alliance will increase patrols in the Baltic Sea region after Finland seized an oil tanker suspected of having damaged undersea power and internet cables this week.

Nato said on Friday it would boost its presence in the Baltic Sea after the suspected sabotage this week of an undersea power cable and four internet lines.

A power cable connecting Finland and Estonia under the Baltic Sea suffered a power outage on Wednesday, prompting an investigation.

Estonia has stepped up naval patrols to protect remaining interconnector to Finland as Nato chief promises more protection.

NATO will bolster its military presence in the Baltic Sea after the suspected sabotage of an undersea power cable linking Finland and Estonia this week, the Western military alliance's chief Mark Rutte said on Friday.

NATO Secretary General Mark Rutte has said that the Alliance will increase its presence in the Baltic Sea following an incident involving damage to electric cables. Source: Rutte after a conversation with Finnish President Alexander Stubb,