Authorities are searching for a missing 13-year-old Arizona girl believed to have been taken to Utah by a man she met on the Internet, the Salt Lake Tribune reports.

Ashley Kingsbury, who police describe as 5 feet 2 inches tall with brown hair and hazel eyes, disappeared Monday from her Tucson home. 

Investigators believe the child is in danger and say she likely left voluntarily with a 19-year-old man, identified as Jordan Anthony, who Ashley had been corresponding with on social networking sites, according to the newspaper.

Police have issued an endangered missing person alert and say they believe the girl was taken across state lines to Utah. 

Anthony is 6 feet 1 inches tall and 140 pounds with brown hair and brown eyes. Police say he may be driving a silver 2000 model Hyundai Elantra with Utah license plate Z75 4UV.

Police are urging anyone with information on Ashley's whereabouts to call 911.

Click for more on the disappearance of Ashley Kingsbury from the Salt Lake Tribune