A shooting occurred on Tuesday evening in a residential area in Fisksätra in Nacka, east of Stockholm.
The alarm came in at half past seven when several residents in the area heard the shooting.
The crime scene is localized and it is outdoors between two apartment buildings. We have found shell casings and we have launched a large operation, says the police's press spokesperson Ola Österling.
No one had been arrested by 1 am, but the police had taken in several people for questioning.
We are questioning several witnesses who have made observations. A criminal investigation into attempted murder and serious weapons offenses has been initiated, says Österling.