INTERNATIONAL: Two crew members on a British cargo vessel were found to be over the legal limit for alcohol after a collision with a Danish barge in the Baltic Sea that killed at least one person, a Swedish prosecutor and the owner of the British ship have announced on Tuesday.

The 55-metre Karin Hoj barge capsized when it crashed with the 90-metre Scot Carrier off the island of Bornholm in fog and darkness early on Monday.

One of the two Danish crew members from the capsized barge was found dead in the hull. The other crew member was still missing and rescue efforts were abandoned after ships and helicopters scoured the waters to no avail.

The Swedish Prosecution Authority is investigating several suspected crimes - negligence in maritime traffic, causing death through negligence and marine intoxication.

Two of the Scot Carrier's crew, a Briton and a Croatian, have remained in custody on Tuesday as part of the preliminary investigation. The prosecutor has until Thursday to decide whether to hold the suspects longer.

The Briton in custody was suspected on multiple counts, including causing death through negligence, and had been on watch at the time of the collision, after which the smaller Danish ship has capsized.

The overturned Karin Hoj was towed into shallow water on Monday to allow divers to gain access without the risk of being pulled down if it sinks. The Swedish Coastguard plans to move it again to a place where it can be turned upright.