Three people have been detained, suspected of being involved in the shooting in Fruängen in southern Stockholm on Sunday. Then, two teenage boys were shot, one of whom died on Wednesday.
Earlier on Thursday, a teenage boy was arrested on probable grounds, suspected of murder and attempted murder.
"Since yesterday (Wednesday), three more people, all under 20 years old, have been arrested and detained in the case. All individuals are suspected on probable grounds of aiding and abetting murder and aiding and abetting attempted murder," says prosecutor Ingrid Viklund in a press release.
The condition of the other boy who was shot is considered stable.