Tucson, AZ (KGUN/CNN) - Tucson police have received nearly 900 leads in the disappearance of 6-year-old Isabel Celis.
Sergeant Maria Hawke says they are working every credible lead to find the child.
"There's not a defined playbook that tells us ok, on day such and such you do this. It really is dependent on the information we've got, how much more investigating we need to do and where we're at which the leads we've acquired and much additional information that is coming in and all of those things get weighed out," said Sgt. Hawke.
Isabel Celis disappeared from her home just over two weeks ago.
Hawke says they are working around the clock and several officers are exclusively assigned to the case.