Finnish authorities seized control of the ship, the Eagle S, on Thursday as they tried to establish whether it had damaged a power cable linking Finland and Estonia and several data cables. It was the latest in a string of incidents involving the disruption of key infrastructure in the region. NATO Secretary-General Mark Rutte said Friday that the military alliance will step up patrols in the Baltic Sea region as Finnish investigators work to establish whether a ship linked to Russia sabotaged undersea cables there this week. Do you think that Russia is behind it ?