UPDATE: Robin Roberts was located and is safe.  William Roberts was taken into custody.

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A 15 year old girl was taken by her biological father from a Ohio Kmart and authorities believe she may be in danger.

The girl, Robin Roberts, 5'10, 110 pounds, blue eyes and blonde hair, was removed from her father's custody one week ago.  William Roberts is a registered sex offender and known drug user, Cleveland.com reports.

William Roberts drives a black Ford Ranger, Ohio license PJL4802.  He is 40 years old, 5'11 and 220 pounds.  While he is said to frequent the Ravenna area in Portage County Ohio, everyone is asked to keep an eye out and to call authorities if either is spotted.