Police are investigating whether the killings at a hair salon in Uppsala are related to a wave of gang violence.

Swedish police say that three people are confirmed dead after a shooting in Uppsala, a city near Stockholm, and are investigating the incident as a murder.

Swedish police detained a 16-year-old early on Wednesday on suspicion of murdering three people in a hair salon in the city of Uppsala, prosecutors said. The victims, aged 15-20, were shot dead late on Tuesday afternoon just as Uppsala,