Two people have been detained after a UK cargo ship collided with a Danish boat in the Baltic Sea off the Swedish coast, killing at least one person.
Prosecutors are investigating allegations of gross negligence and gross drunkenness at sea involving the UK-flagged Scot Carrier.
Two crew members on the Scot Carrier were found to be over the limit.
Rescue teams searched for hours by sea and air after the much smaller Danish boat, Karin Hoej, capsized.
One of Karin Hoej's crew remains missing.
Officials said a British and a Croatian citizen had been arrested.