Little is known about a possible motive.
In Skogås, Sweden, a 15-year-old boy has been arrested on suspicion of murdering his peer, the prosecutor confirms.
The incident was reported by several Swedish media, such as Expressen (you switch to another service) and SVT (you switch to another service).
The suspected murder happened last Saturday. A 15-year-old is suspected to have been shot by a boy of his own age in a sushi restaurant south of Stockholm in the municipality of Huddinge.
The suspected perpetrator has denied the act.
The police have also arrested two other minors, a 16-year-old on suspicion of protecting a criminal and a 17-year-old on suspicion of aiding and abetting a murder.
Little is known about a possible motive. According to Expressen, the police suspect revenge as the motive for the act.