- I see a guy walking around with a mask, I met his gaze and it was very uncomfortable. It does not feel safe to meet such a person at school, but I did not see if he had a knife on him, says Emelie.

Several police patrols are on site at the School of Engineering and the details of the incident are still unclear.

According to information to the newspaper Aftonbladet, a masked person armed with a knife should be in the school's area.

The police themselves say that it is school personnel who have alerted a threatening person on the school premises.

- We have an ongoing effort at Teknikum, but I cannot go into detail what it is about, says Per Bergendahl, who is on duty investigative leader at the police in Växjö.