LAKE CITY, Fla. -- A missing child alert has been issued for a missing Florida teen.

The alert is out of Columbia County. Investigators are looking for 17-year-old Caitlyn Frisina. They believe she left home on her own and may be with 27-year-old Rian Rodriguez. They may be in a red Mercury Sable with Florida tag Z04CSC.

Caitlyn is a white female, standing around 5 feet 7 inches tall. She's135 pounds and has brown hair and brown eyes. She was last seen in the area of the 600th block of SW Markham Street in Lake City. Rodriguez is 27 years old and stands 5 feet, 10 inches tall. He's 220 pounds and has black hair and brown eyes.

If you have any information about where they might be, you’re asked to call the sheriff’s office at 386-719-2005.

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