Swedish police detain 16-year-old after three killed in Uppsala shooting

Teenager held on suspicion of killings after incident at hair salon in university city north of Stockholm, say prosecutors

A 16-year-old has been detained on suspicion of shooting and killing three people in the city of Uppsala, according to Sweden's prosecution authority.

An intensive investigation is under way. We are now gathering information and the police are conducting door-to-door inquiries and interviewing witnesses," the authority said in a statement.