These are a total of four men in the age range 32 to 19 who have now been arrested at Linköping District Court. All are likely, the higher degree of suspicion, suspected of unlawful detention and ill-treatment.

The crime itself must have occurred on Monday and Tuesday earlier this week. Prosecutor Erik Gunneland Dahlbäck is few words in the case.

- I can't really say much about the investigation at this time, he tells SVT News East.

Prosecutor Britt-Louise Wiklund, who participated in the detention negotiations on Friday, can also not tell you more about the case at present.

- Everyone denies crime in general, it is preliminary investigation confidentiality and investigation is ongoing, she says.

Prosecution should be brought within two weeks.