Darby Jean Girardi, 14, was last seen at Leesville Road High School in north Raleigh on March 26.
Investigators say they do not consider Darby to be endangered and believe that she ran away voluntarily.
Darby is described as a white teenager, standing 5 feet 2 inches tall and weighing 120 pounds. She has brown hair and blue eyes.
Anyone with information about Darby's whereabouts should call the Wake County Sheriff's Office at 919-856-6911 or Investigator Grady C. Privette at 919-404-4022.
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