At 23.15, the police were alerted to Spånga, when a woman is said to have been raped outdoors near Spånga church.
Police technicians are on their way to the scene, which has been cordoned off, for a crime scene investigation.
- We have arrested a suspected perpetrator and initiated a preliminary investigation into rape, says police officer on duty Jari Kalliorinne.
Was it an assault rape?
- I do not want to comment on details given the sensitive nature of the case.