The alarm came to the police just before eleven on Saturday morning.
The police are now working to possibly find more parts that can reveal where the find comes from.
- We search with dogs to see if you can find something more that determines where it comes from.
A larger part of the area around the lake is cordoned off so that we can search in peace and quiet, says Anders Wennergren.
The suspected body part will now be examined more carefully before it can be determined for sure where it comes from.
- It will probably be sent to forensic medicine and to the lab for DNA analysis to ensure what it is.