- The students who found the blast dough went directly to a teacher who came to me, and when I first saw it, I thought it looked like a sausage piece in a bag. I smelled it and thought it was strange that it lay with an electric cable and a can, says the headmaster Mickael Westerdahl.

He contacted the police, who were on site with a patrol after four minutes.

- When I realized what it was I had in my hand, I was actually shocked. I thought it was uncomfortable that the children find it in a sandbox in the school yard during the daytime sending disturbing signals, says Mickael Westerdahl.

The police found that the blast dough was not dangerous in the form it was found.

- I went down with the police to the sandbox to see if there was more, because the children told us it had been buried. But we couldn't find anything more and the police found that there was no danger, says Mickael Westerdahl.

Police: "Incredibly judgmental"

The police brought the bag of explosive dough and cables to conduct an investigation, and to search for fingerprints. They want to emphasize that they take the event seriously, even though the dough was harmless in the form it was found.

- It's incredibly serious and inappropriate, it's judgmental and stupid. That there should be some kind of criminal code that you should not harm outsiders, I think is utter bullshit when you see such things, it is as low as it can be, says Nils Norling, a police spokesman.