Missing person: Hailey Kupihea

(KYMA, KECY) - The National Center for Missing & Exploited Children (NCMEC) is asking for the public's help in locating a missing Arizona teenager.

NCMEC says 17-year-old Hailey Elizabeth Kupihea went missing from her grandmother's home in Phoenix last month, with authorities saying she spent "a lot of time online and may have gone to meet someone."

Kupihea's family, according to NCMEC, is "extremely worried about her well-being and say she may need medical assistance."

She is described by NCMEC as five-feet, four-inches tall, weighing 120 pounds, has blue eyes and brown, ear-length hair, has nose and ear piercings and is wearing a black choker necklace.

If anyone has information on Kupihea and her whereabouts, call NCMEC at 1-800-THE-LOST (1-800-843-5678) or the Phoenix Police Department at (602) 262-6151.