Police reported voldsepisoden in Wessels street on Twitter at 3.34 on the night of Friday.

– We got a lot of messages from residents just before half past four. They had heard a lot of screams, as we sent more patrols to the location with a time. When they got there, we found a woman who has been exposed to violence, lying in the backyard. She was bleeding from the back of the head, but was conscious, ” says operasjonsleder Vidar Pedersen at the Oslo police to the NTB.

While the woman was taken care of by health workers on site, facilitate police after two men that witnesses had seen leave the place.

An hour later stated to police that the woman was exposed to violence, but that she did not appear seriously injured.

– Information from witnesses indicate that there is a relationship between the woman and the suspect. We do not have control on suspects currently, but we have obtained a name on him, informs the police.

Pedersen will not out of how many patrols police have in the area, but says to NTB that they take the issue seriously.

– We keep the pressure up, but have not detained anyone. We work on site and are in dialogue with the witnesses, enlightened by 4.30 era. The offended woman was then still on the site.