Illinois State Police issued an AMBER Alert Monday for two Williamson County girls.
The girls were reported missing Sunday evening, and found unharmed on Monday afternoon.
Investigators say the girls' stepfather, Damon Jones, kidnapped nine-year old Corbyn Erwin and seven-year old Celsie Erwin.
Authorities searched for Jones and the girls, eventually requesting an AMBER Alert Monday afternoon. Anyone with additional information is asked to call the Williamson County Sheriff's Department or the local police.