The man's remains have now, after a technical investigation, probably been found in one of the burnt-down properties, Norrköping's newspapers state.

- We have found a person in one of the burnt down houses and we believe that it is the person who has been missing, says Allan Jensen to the newspaper.

On Monday, a woman suspected of aggravated arson was arrested and later arrested.

The woman has now been released.

- The suspicions against the person who has been arrested have weakened and I see no reason for the person to be arrested, says Anna Jakobsson who leads the investigation at the prosecutor's office to Norrköping's newspapers.