PUEBLO, COLO. -- The Pueblo County Sheriff's Office is investigating a report of threats at the El Pueblo Boys and Girls Ranch.

Deputies listened to recorded messages threatening the lives of staff.

They traced the messages to a cell phone belonging 22-year-old Andrew Herndon.

the staff remains on high alert, because of the seriousness of the threat.

A no-bon warrant for harassment has been issued for Herndon.

He's 6'2", 180 pounds and has brown hair and hazel eyes.

If you have any information on his whereabouts please call the sheriff's office at 583-62-50.