Police said there's suspicion that the ship, which was sailing between the Russian ports of St. Petersburg and Murmansk, was involved in serious damage to the cable in the Baltic Sea. They didn't elaborate, but said they were searching the ship and conducting interviews.
Damage to the data transmission cable running from Ventspils, Latvia, to Gotland was detected on Sunday. Later that day, Swedish prosecutors announced that they had opened a preliminary investigation into suspected sabotage and ordered the detention of a vessel suspected of damaging the cable, the Malta-flagged Vezhen.
That ship's Bulgarian owner said that it was possible that the Vezhen had accidentally caused a cable to break, but dismissed any possibility of sabotage or any other action on the part of the crew.