As the investigation into the 34-year-old mother from Pontiac, Michigan who police say abandoned her three children continues, crews cleaned up the townhome that investigators say the children lived in for years.

Oakland County Prosecutor Karen McDonald has charged 34-year-old Kelli Bryant with three counts of first-degree child abuse in the Pontiac abandonment case.

Kelli Bryant's children — a 15-year-old boy, a 13-year-old girl and a 12-year-old girl — were found living in a "biohazard," police said.