A right arm has been found by divers in the sea south of the Danish capital that could be linked to the case of the dismembered Swedish journalist who disappeared after a trip on a private submarine in August, Copenhagen police said Wednesday.

Police investigator Jens Moeller Jensen said it was found about 1 kilometer (over half a mile) from where Kim Wall's decapitated head and legs were discovered in plastic bags in October.

He said it was held down in the same way as a left arm found nearby earlier this month, involving plastic strips and pieces of pipes. Forensic experts are expected to examine the arm Thursday.

Danish inventor Peter Madsen has admitted to dismembering Wall on board his submarine and dumping her body parts in the sea, but he denies murdering her and also denies a charge of sexual assault without intercourse.

Wall, a freelance journalist who was researching a story on Madsen, went missing after he took her out to sea in his homebuilt 17-meter (56-foot) submarine in August.

Wall's cause of death has yet to be determined.

On Aug. 23, police identified a headless female torso that washed ashore in Copenhagen as Wall's. In October, police said they had recovered her head and legs.