It was just before half past ten that the police received the alarm.
Police arrived at the scene to arrest a 15-year-old boy who was suspected of minor drug offenses in his own can and violation of the knife law.
But the effort became more messy than expected.
- The police told the young people to back down but it was not obeyed.
They started throwing things and having fun, says Björn Öberg.
The police had to call in more resources.
- The patrols raised the batons and then the teenagers backed off, he says.
The teenagers were identified and became suspected of blue light sabotage.
But they were not arrested or taken into care.
During the night until Friday, the police arrested about 15 people in the county.
- It is relatively much to be in Sörmland.
It is noticeable that the pandemic is over and that people are out partying to a greater extent.