Police, emergency services and an ambulance were called to the scene. It was found that some type of firecracker was thrown into a room through a window. The police have blocked off the scene and the national bomb shelter will in the morning investigate the object thrown into the premises.
It is about a room in a multi-family house on Söder in Huskvarna.
No person should have been injured, but several had heard the bang and called 112. The police have launched a preliminary investigation into the destruction of public property.