An Arizona woman is accused of giving her children and one of their friends drugs during a camping trip in which a toddler under her care disappeared and was later found dead.

Christina Priem of Flagstaff was arrested and faces three felony counts of involving a minor in a drug offense. Priem’s arrest stems from an investigation into 2-year-old Sylar Newton’s disappearance and death. The boy was camping with Priem and her family near Rimrock in July when they reported him missing. A distant relative found his remains weeks later.