The ship Caffa, located approximately three nautical miles south of Trelleborg, was boarded by the national police task force and the Coast Guard on Friday.
On Saturday morning, the operation was still ongoing, after a break during the night.
The search and interrogation work is still ongoing, says Coast Guard press spokesperson Valdemar Lindekrantz.
The ship is on Ukraine's sanctions list and is flying a Guinean flag, which is suspected to be false. The ship is therefore considered stateless, according to the Coast Guard. An investigation into violations of the Maritime Code regarding lack of seaworthiness has been launched.
On Saturday afternoon, the Coast Guard and the police will hold a press conference about the operation.
