10/04/2012 03:26 pm ET

Shawna Hansen Missing: Washington Authorities Search For Developmentally Delayed Teen

Police in Washington are asking for information about a Marysville teen with developmental delays who was reported missing Tuesday.

According to the Marysville Police Department, Shawna Hansen, 17, left her north Marysville home at about 5:30 p.m. Tuesday, following a disagreement with her family. The girl's backpack and bicycle are also missing.

Authorities said Hansen suffers from Turner Syndrome and may display anti-social behavior. She has the developmental age of a 10 or 11-year-old, police said.

"Although she had a disagreement with her family and left her home on her own, we are concerned because she is developmentally delayed," a Marysville police spokesperson said.

Hansen is about 4-foot-6, 90 pounds, with short, brown hair and brown eyes. She was last seen wearing jeans, black jacket, and a pink and white T-shirt. She is possibly carrying a black, white and blue backpack and may be riding a pink and black "Next" BMX-style bike.

Anyone with information on Shawna Hansen's whereabouts is asked to call Marysville police at 360-363-8350.



Missing Children