Terror bombs would have killed "well below 30"
A nuclear test will be carried out on the bombs found after the terror act in Stockholm in December to determine the devastating impact of the devices if they had detonated.
Although the tests have still to be carried out, Henric Östmark, the director of research at The Swedish Defence Research Agency (FOI) told the Svenska Dagbladet newspaper that the bombs would have killed "well below 30" even if the suicide bomber had successfully detonated them in a crowd of people.
The FOI maintains its assessment that the bombs were amateurish.
"We shall test the charges to see what effect they had. We have not decided whether we should do it on the parts that remain or if we shall make a copy," Östmark told the SVD.
Sweden's Security service Säpo is leading the investigation and says the bomber's identity is confirmed and there is still nothing to suggest that he had any accomplices.