A 22-year-old man was arrested this Wednesday after stabbing four people to death, including a minor, and injuring five others in Illinois (United States). Rockford police received several alert calls about injured people in different parts of the town, the CBS news network reported.

Officers arrested a 22-year-old suspect who allegedly broke into a home and then injured several people in the surrounding area.

The fatalities were a 15-year-old minor, a 63-year-old woman, a 49-year-old man and a 22-year-old young man. In addition, another person was seriously injured and four others suffered minor injuries that were treated at a hospital.

Police are questioning the suspect and do not yet know the motive for the attack.