A tip investigators said was credible prompted a search of at least one apartment unit Sunday night in the case of a missing 24-year-old Orlando woman.

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SLIDESHOW: Person Of Interest

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Jennifer Kesse mysteriously vanished nearly three weeks ago and since her disappearance, several leads have been reported to law enforcement.

Sunday, investigators received a tip from a woman who said Kesse was being held in an apartment unit located at 1414 40th Street in Orange County.

"We had information that she was seen there and that she was alive and she was being held against her will," Orange police Sgt. Richard Ring said. "Detectives working the case interviewed that person and that person apparently gave them enough information to make them concerned."

A SWAT team searched inside the structure but did not find the missing woman or any sign she had been there in past weeks.

"The results were negative," Ring said. "She was not in the residence. We are interviewing people there to see if there is a possibility that she might have been there."

Ring said authorities will continue to track leads in the case.

"Due to the fact that it was credible, because this is what we would expect if it was our family member, we acted appropriately I think," Ring said.

Meanwhile, Child Watch organized its final search for Kesse around the Mall at Millenia Sunday.

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.