What the message consisted of and where it was written at school, Lundin does not want to go out with, according to NWT it is about threats of shooting.
- We took it very seriously and contacted the police.
I can not comment on what the graffiti consisted of, I refer to the ongoing police investigation, says Lundin.
The school is open tomorrow
The school will be open as usual on Thursday.
There will be police on site at the school as a security-creating measure, the school's principal Amelie Wahlström announces.
School staff will also be available and more visible to capture any concerns among students.
Unclear connection
Earlier in the week, graffiti with threatening messages was discovered on various buildings around Karlstad, including Kronoparksskolan and Sundsta-Älvkullegymnasiet.
A woman in her 20s has been arrested on suspicion of it.
But whether there is any connection between the cases of threats and the threat at Rudsskolan is unclear.
- This was much smaller in size but I can not comment on whether there is a connection or not, says Marty Lundin.