Authorities continue to search for a Henrico County teenager missing for more than a week.

Kelsey Marie Ratliff, 16, a student at Varina High School, was last seen by her parents June 24.

Her mother, Betty Iannon, said today she believes Kelsey may be with someone she met online using a school-issued laptop computer.

Henrico middleand high-school students get laptops issued to them for the school year. The computers have filters to block access to Internet chat rooms and inappropriate sites -- but some students bypass the filters.

Henrico police have not completed their evaluation of Kelsey's computer, said spokesman Lt. Doug Perry. Henrico schools spokesman Mychael Dickerson said the school system is "working with the police to investigate."

On June 24, Kelsey stormed out of the family home in the 2000 block of Oregon Avenue after an argument with her parents about her use of her laptop, said Iannon. She spent that night at a friend's house. There have been no confirmed sightings since.

Kelsey is described as 4 feet, 10 inches tall, 145 pounds with brown hair and blue eyes. She was last seen wearing blue jeans, a blue T-shirt and tennis shoes.

Henrico police asked anyone with information about Kelsey to call investigator T.A. Morris at 501-5000 or Crime Stoppers at 780-1000.