WELLINGTON, Kan. (AP) — A south-central Kansas woman has been taken into custody on suspicion that she killed her 10-year-old son.

The Wichita Eagle reports the 33-year-old woman was being held in Sumner County jail after the boy was found dead in the family’s home in Wellington.

Police were called at 11:45 p.m. Sunday to the home, where they found the boy dead with a puncture wound to the chest.

Wellington Police Chief Tracy Heath says the official cause of death hasn’t been determined.

Police say the mother was arrested without incident.