More than 500 volunteers are continuing the search for a Virginia Tech student who went missing in Charlottesville last month.

Twenty-year-old Morgan Dana Harrington was last seen October 17 after she became separated from her friends at a Metallica concert. A three-day search for Harrington began Friday with about 360 volunteers, but they turned up no new leads.

On Saturday, there was a 30-minute wait for volunteers to register. The search was organized by Texas-based Laura Recovery Center, named for a girl who was abducted and slain when she was 12.

The group hopes to have a three-square-mile area searched by Sunday evening.

Virginia State Police have followed up on 350 tips so far. A reward for Harrington's return is at $150,000.

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