Image copyright Ritzau Foto Image caption Kim Wall boarded Peter Madsen's submarine Nautilus on 10 August, and then disappeared 
 
 A Danish inventor charged over the death of Swedish journalist Kim Wall has said she died in an accident on his submarine and he "buried" her at sea, Copenhagen police say. No further information will be given with regard to the investigation of the case, since it is being conducted behind closed doors,” the police statement read. The information was approved for release by Copenhagen City Court following a request from the prosecution authority, according to the police statement. Both Swedish and Danish marine authorities have now mapped out a detailed track of the route taken by the submarine in the Öresund Strait and Køge Bay on the evening of Thursday August 10th, when Madsen’s NC3 Nautilus submarine disappeared, through to it being relocated at 10:14am the following day, police also confirmed. After over a week of denying any role in Wall's disappearance, on Monday he admitted to dumping her body into the ocean.  Danish police say the freelance Swedish journalist Kim Wall died aboard the do-it-yourself UC3 Nautilus submarine captained by inventor Peter Madsen, who had initially claimed to have dropped her off at the tip of a Copenhagen island. Danish police say Madsen deliberately sank the 18-meter (60-foot) submarine in the Bay of Koge, south of Copenhagen, shortly before his rescue on August 11. The court case is being heard behind closed doors but Peter Madsen's explanation of what happened was released after a request from the defence and prosecution. Madsen’s lawyer Betina Hald Engmark told DR that her client was “relieved” that his explanation had now been made public. 5:44pm: Copenhagen police announce through a press statement that the owner of the Nautilus has been charged over the woman's death. Monday August 14th 
 
 9:30am: Madsen's lawyer informs media that her client accepts his preliminary detainment on charges of manslaughter. 2:26pm: Following a forensic examination of the wreck, police announce that they believe the submarine to have been deliberately sunk.
– The mystery of what happened to a Swedish journalist who vanished after a ride on a Danish inventor's submarine is slowly becoming clearer. Though details are still scarce, Copenhagen police say Peter Madsen, after changing his story, has confessed that Kim Wall died in "an accident" on board his Nautilus sub and that he then "buried her at sea," the BBC reports. Officials have been searching for Wall since her disappearance on Aug. 10, when she boarded Madsen's sub, which then sank off of Denmark's Refshaleoen island. Madsen initially claimed he had dropped Wall off after they'd cruised around for about three hours, but in a police statement cited by the Local, that story has since been modified. "The accused has told police and the court that an accident occurred on board the submarine which caused Kim Wall’s death, and that he subsequently buried her at sea at an unspecified location somewhere in Koge Bay," reads the statement in the closed-door case. Madsen's explanation was released after a defense and prosecution request. Although the statement also notes that "current charges remain in place," it's unclear what those charges are: Deutsche Welle notes that Madsen was originally charged with negligent manslaughter, but it's now reporting a new charge of aggressive manslaughter, which it says can lead to a prison sentence of up to eight years. A search for Wall's body in the newly pinpointed area is now underway.