Mystery around sunken submarine

copenhagen - The missing Swedish journalist Kim Wall (30) still lacks any trace. She would have boarded a private submarine on Thursday.

The Danish police said, according to press agency Ritzau, that a search of the 18-meter-long submarine had not been found.

The submarine sank Friday after thirty seconds after a ballast tank problem, the captain said, 46-year-old Peter Madsen. The Danish builder could have financed the submarine by crowdfunding and the Swedish journalist made a story about it. She entered Thursday and, according to Madsen, was still deposed on a small island in Copenhagen's harbor area that same day. When the boat sank on Friday morning, Madsen was rescued by a powerboat.

The Swedish journalist, who wrote for The Guardian and the New York Times, has since been traceable. Madsen was detained on suspicion of murder or killing on Saturday. He denied all accusations.