The alarm was taken very seriously, and the emergency services and several police patrols responded with a high level of security. Once they arrived at the apartment, the danger was quickly declared over.
Police spokesman Johnny Gustavsson says the behavior was "very reckless."
I can say that our patrol was very clear in its communication on site - and then we are talking about a real lesson learned, he told the radio.
No one is suspected of any crime.
