NATO is deploying eyes in the sky and on the Baltic Sea to protect cables and pipelines that stitch together the nine countries with Baltic shores.

President of Finland, Alexander Stubb, admitted that there is no certainty about who is responsible for cutting cables in the Baltic Sea. Local media suggest that the authorities may be covering up Russia's involvement.

The NATO alliance is ratcheting up its guard against suspected attempts to sabotage underwater energy and data cables and pipelines that crisscross the Baltic, prompted by a growing catalogue of incidents that have damaged them.