According to the newspaper, it was magnet fishermen who picked up the object and then called the police.
The National Bomb Protection was called to the scene and the object was disarmed during the evening.
I interpret it as that this thing was far too difficult to analyze since it was so badly damaged by rust, says Dick Steisjö.
I do not think you can say what it was, but you have handled it as if it would be a hand grenade, for safety's sake, he continues.
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No person is reported to have been injured during the detonation.
