A person under the age of 18 has been detained on probable grounds suspected of preparation for murder and serious weapons offenses.
The suspect was arrested in central Stockholm during the night leading up to Sunday, writes the Prosecution Authority in a press release.
At the latest by lunchtime on Wednesday, the prosecutor will decide whether the person should be requested to be detained or released.
TT has contacted the police and the Prosecution Authority, but they do not want to comment on the suspicions further.