"A woman in the vicinity of Bäckparken on Björneborgsgatan must have suddenly been grabbed and held by a man unknown to her.

A passer-by interrupts the incident and alarms ", the police write on their website on Sunday.

- A person comes on a bicycle who notices this.

Then the suspected perpetrator leaves the place, says Malin Axroth, the police communicator.

The alarm was received by the police at 03:00 and the suspected perpetrator is said to be young, approximately 180 centimeters tall and was wearing a gray hoodie at the time.

- We have been to the place.

In general terms, the police are looking for clues and other forms of evidence that can be secured, says Malin Axroth.

According to the police, the woman must have received minor physical injuries in connection with the incident.