The police assess that a hand grenade has exploded on a sidewalk outside a building in Hagalund.
Property and parked cars near the location have sustained extensive splinter damage. No reports have been made of any injured person.
Police have launched an investigation that is classified as general destruction and gross violation of the LBE Act regarding flammable and explosive goods.
A intense search is underway for suspected individuals. A number of people are being checked in central and northern parts of the county.
Update at 02:45
Two suspected perpetrators have been apprehended and taken to a police station for initial questioning.
The crime scene has been cordoned off and bomb technicians are on site to conduct an investigation of the crime scene. Forensic technicians will then take over to secure evidence and other technical proof. To assist technicians, a search is also underway with patrol dog and special search dog.
Police are conducting multiple interviews with individuals who have made observations around the explosion and other phenomena that are relevant to the investigation