Rabbe von Hertzen, who is heading up the investigation, says two members of the National Bureau of Investigation (KRP) are to question suspects and meet with Russian investigators. They are to return to Finland on Friday.
Von Hertzen says the trip is necessary because the suspects are being held in Russia.
The Arctic Sea was seized by a group of hijackers in Swedish waters in the Baltic Sea in July. The vessel was carrying a load of lumber from Finland to Algeria. The Russian Navy regained control of the ship off Africa’s west coast in August.