MINNEAPOLIS (WCCO) — Authorities in northeastern Minnesota are seeking three persons of interest after a 16-year-old boy was fatally shot on the Fond du Lac Reservation.

The St. Louis County Sheriff’s Office says the shooting was reported early Monday morning at an address inside the reservation. When officers arrived at the scene, they found the body of a 16-year-old boy who appeared to have been shot. The victim’s name has yet to be released.

Investigators questioned two women at the address and learned of three persons of interest who left the scene before police arrived. Police determined that one the persons of interest — 18-year-old Joseph James Fohrenkam — is believed to be the one responsible for the boy’s death.

One of the other two persons of interest is said to be cooperating with investigators.

Anyone with information on the shooting or who knows the whereabouts of Fohrenkam is asked to call 218-625-3581. He’s believed to be with his mother and also still in possession of a handgun.