The Chenango County Sheriff’s Office has released the cause of a fatal fire on German Hollow Road in the Town of Plymouth.

Sheriff's Office investigators, along with investigators from the Chenango County Bureau of Fire. have determined the fire started in the area of a wood stove being used to heat the home.

33-year old Debbie Pfeiffer, one-year old Benjamin Pfeiffer and 10-year old Amber Morrow were killed in the Monday morning fire.

Autopsies determined that the three died from smoke inhalation.