There are a large number of patrols who are at the Knowledge School in Huskvarna on Monday morning.

According to police spokesman Thomas Agnevik, it is currently a bit unclear what happened.

- We have patrols on site that check information that people have behaved suspiciously at the school.

There can be many reasons for behaving mysteriously.

Since it is at a school, we need to be there.

Someone has called and alerted.

There must also be someone who thinks they have heard a big bang.

It's not dramatic at the moment.

We are at school and talking to the school staff and the atmosphere should be calm.

Andreas Dufva-Johansson works at Kunskapsskolan as a coordinator, he tells SVT's reporter on site that after a while of anxiety at school, it is now starting to calm down.

- Someone heard a loud bang with subsequent smoke just outside the school and we then reacted immediately and called the police, says Dufva Johansson.

Several students became worried and we gathered them.

Now the atmosphere should have calmed down and we are waiting to get the go-ahead to go and eat.

- What do you think it's about?

- I do not know, but I do not think it has any direct connection to school, it is probably some kind of boy dash.

No information that anyone is injured or feels threatened.