TUCSON - Police are calling the disappearance of a 6-year-old girl a "suspicious disappearance" or "possible abduction," according to Sgt. Maria Hawke with the Tucson Police Department.

It became less likely the girl wandered off as it got later in the day, according to Hawke.

Isabel Mercedes Celis was last seen around 11 p.m. Friday night when her parents put her to bed, according to Hawke.

When Celis' father went to wake her up around 8 a.m. she was not it the home, according to Hawke.

The family called police around 8:15 a.m.

The girl was in a house on the 5600 block of East 12th Street near Broadway Boulevard and Craycroft Road. The parents and 2 older brothers also live there, according to Hawke.

Detectives are investigating if anybody broke into the home.

Police searched the neighborhood all day Saturday and served multiple warrants.

Blood hounds from the Department of Corrections helped.

Several agencies were involved, including US Marshalls, the FBI and the Pima County Sheriff's Department.

Police have many leads and plan on working well into Sunday morning, according to Hawke.