TUCSON, Ariz. (AP) - The parents of a 6-year-old girl who disappeared from her home in Tucson, Ariz., say they will do anything to ensure her return.

Becky and Sergio Celis pleaded in front of reporters Wednesday for whoever has their "baby girl Isabel" to make their demands known.

The couple say they are increasing the reward for information. They also expressed gratitude to investigators and to people who have prayed for Isabel.

This is the first time Isabel's parents have spoken publicly since Isabel was reported missing Saturday. The first-grader's family last saw her in her room Friday night.

Tucson police consider the case a suspicious disappearance and possible abduction.

Police Chief Roberto Villasenor says he still hopes to find Isabel alive. The FBI has brought in specially trained profilers to help.

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Associated Press