Police are looking for a 15-year-old girl who has a serious medical condition and been missing for more than two weeks.

A news release from the Utah Department of Public Safety says Katie Seegmiller, of Washington city, was last seen Jan. 23 at about 10:30 p.m.

Seegmiller is 4 feet tall, weighs about 90 pounds and has blonde hair and blue eyes. Authorities are concerned because Seegmiller has cystic fibrosis.

Seegmiller may be headed to South Dakota, police say.

(Photo courtesy of Washington City Police Department) Katie Seegmiller

Anyone with information about Seegmiller’s whereabouts is asked to call the detective unit at the Washington City Police Department (435-986-1515, ext. 7308) or call the 24-hour dispatch line (435-634-5730) and reference case No. 18Z00545.