Officers on horseback continued a grid search Wednesday for a missing Orlando woman who mysteriously vanished more than a week ago.

Investigators said Jennifer Kesse, 24, did not show up for work at Westgate Resorts in Ocoee, Fla., last Tuesday morning.

Since her disappearance, a massive search has been launched and thousands of fliers have been posted throughout Ocoee, Fla., and Orlando.

Wednesday, teams of police officers and sheriff's deputies were searching areas inside the boundaries of Texas Avenue to the west, Orange Blossom Trail to the east, Oakridge Road to the south and Holden Avenue to the north.

It is the fourth day officers have searched on horseback in wooded areas in search of clues.

Nearly 100 anonymous Crimeline tips have been made since last week, but the woman remains missing.

The first break in the case came Thursday when Kesse's 2004 Chevrolet Malibu was found abandoned at the corner of Texas and Americana at the Huntington on the Green apartment complex. Neighbors said the vehicle had been parked in the lot for several days.

After Kesse's vehicle was found, officers performed a grid search of a wooded area near the Mosaic at Millenia condominiums but nothing was found in the area.

A $115,000 reward is being offered for information about Kesse's whereabouts.

If you have any information, you are urged to call Crimeline at (800) 423-TIPS.

Watch Local 6 News for more on this story.