The Oslo police reported the case immediately after 10.30 pm. No one was injured in the incident, and the object was quickly extinguished.
According to local police, a Molotov cocktail was thrown at the police station.
– A Molotov cocktail was thrown at the entrance, says task leader Tore Barstad to TV 2.
Four arrested
Operations Manager Sven Christian Lie can neither confirm nor deny that this is a Molotov cocktail, and says that the forensic technology department is still investigating the crime scene.
– The object was thrown or put at the police station. One of the hypotheses is that this is aimed at the police and the police station, says operations manager to TV 2 at 23.45.
At 00.47, the police report that four people have been arrested on suspicion of dealing with the case.