The trouble flared when Hammarby took the lead twenty minutes into the second half. Riot police using water canons were used to stop a group of supporters from breaking through the perimeter fence.
Earlier before the game, a policeman was taken to hospital after being hit on the head by a bottle thrown from a group of supporters in nearby Sundyberg. 40 arrests were made.
The game itself, finished 1-all after the re-start. The Swedish football Federation will meet to decide whether to dock the club points, meaning certain relegation, or force AIK to play their final home match behind closed doors.