ORLANDO, Fla. -- A reward for information in the mysterious disappearance of an Orlando, Fla., woman was increased to $15,000 Friday as police began day four of the search for the 24-year-old, according to Local 6 News.

---

MAP: Search Area

---

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

Thursday, 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.

Detectives would not say if any clues were gathered from the car.

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.

Kesse's father continued to ask the public for help.

"Please continue to look for Jennifer Kesse, no matter how small or how inclined you are to say, 'Is that, could that (be her)?' Drew Kesse said. "It doesn't matter. Make a call to authorities."

Friday, Kesse's sorority sisters planned to join the search, according to the report..

Since Tuesday, Kesse's cell phone only rings to voicemail and there has been no activity on her credit car, Local 6 News reported.

Her disappearance Tuesday alarmed family members who said it is extremely uncharacteristic of her, Local 6 reporter Jessica Sanchez said.

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

Watch Local 6 News for more on this story.