It was on Monday that the woman herself reported that the attempted rape had taken place.
The suspected crime must have taken place at Kolbränningen, outside Borås.
After the incident, the police must have searched the place with a dog.
On Wednesday, the police brought in a boy under 15 who is suspected of the crime.
- We have brought in a suspect who matches the description that the woman gave us, says Hans Andrén, on-call preliminary investigation manager at the police in Borås newspaper.
At this time, the police do not want to release any more details about the suspect or the crime.
- We will hold an interrogation with him now, where the lawyer and social services will participate, says Hans Andrén to SVT.