Zhaoxu Wang was five years old when she and her twin brother disappeared from their Champaign, Illinois, home on February 7, 2015. Described as having black hair and brown eyes, Zhaoxu’s disappearance was classified by investigators as a family abduction rather than a typical missing child case.

Authorities believe the twins were taken by their non-custodial mother, but the mother’s identity and photographs have not been publicly released. Few specifics about what led to the abduction are available, and the lack of identifying information has complicated search efforts.

Their whereabouts remain unknown and the investigation is open. If anyone has information about Zhaoxu, her twin brother, or the children’s non-custodial mother, please come forward.