ELK RIVER, Minn. (AP) — The adult son of a woman found dead in Sherburne County has been arrested in her death.

Sheriff’s officials say the 20-year-old man has been booked into the county jail on suspicion of first-degree premeditated murder. The Big Lake man is accused of killing his mother inside a home on Thursday. Authorities did not say how the woman died.

Officers responded to the home after a man called 911 to report that his son told him he had killed his mother. The officers arrested the son, entered the home, and found the woman’s body. She has not been identified.