Aftonbladet was the first to report the incident. The police announced that they had been able to detect a liquid mixture on the building's facade.
"Right now I have information that there is damage to the facade," police spokesperson Susanna Rinaldo told TT.
The police cannot elaborate on what "some type of liquid mixture" means.
What exactly is contained in that liquid mixture remains to be seen. That is being looked into within the framework of the investigation, says Susanna Rinaldo.
And you look more closely at these drone observations that have been made, it simply needs to be investigated further before it can be confirmed.
The police have launched a preliminary investigation into vandalism and harassment.
It is likely that more crime categories may be added, says Susanna Rinaldo.
The police received the alarm at 6 a.m. on Saturday morning.
