CLOQUET— Police in northern Minnesota have arrested a suspect in the deaths of a woman and a 1-year-old child at a home on the Fond du Lac Indian Reservation.

Authorities were called to the home in Cloquet on Saturday for a welfare check on the woman and her child. Officers checked the home but were unable to contact or see anyone inside. Officers later obtained a search warrant and found the bodies of a 27-year-old woman and an 18-month-old boy inside the house.

Police located 33-year-old Sheldon James Thompson shortly before 9 p.m. Sunday with the help of a State Patrol helicopter and a Carlton County tracking dog, according to the Star Tribune.

Police say Thompson apparently had a relationship with the victims or otherwise knew them.

Names of the victims are being withheld until they are identified and family members notified. Autopsies will be conducted by the Midwest Medical Examiner’s Office in Ramsey, Minnesota.

Police are investigating the motive. Police said there are numerous witnesses and that interviews may take time.

The Minnesota Bureau of Criminal Apprehension was called in to provide crime lab services.