Christopher Derleth in custody in Madison County

(KPLR) – An Illinois man accused of kidnapping his 13-year-old stepdaughter and her newborn son is now in custody in Madison County.

Christopher Derleth is in Madison County Jail on charges of aggravated kidnapping and parental abduction.

He was taken into custody last month, after being discovered at a remote West Virginia camp site with the children.

Their disappearance from an Edwardsville home sparked a nationwide Amber Alert.