Three men in their 20-25 years of age have been detained, reasonably suspected of involvement in the murder in the Berga district of Linköping on Tuesday, the police write on their website.
The three detainees are known to the police from before, says the local police chief in Linköping, to P4 Östergötland.
It was during yesterday's afternoon that a man in his 40s was shot to death in Berga. According to information to TT, the victim is a leading gang criminal.
This is confirmed by Ann-Christine Rehnström, local police chief in Linköping, to P4 Östergötland.
He is a leader in the so-called "Berga network", she says.
The police have worked with several resources on the site, including drones and dog patrols. A forensic investigation has been conducted on the site.