TUCSON, Ariz. -- Three weeks after Tucson girl Isabel Celis, 6, disappeared from her home, police say Child Protective Services has stepped in to ensure the welfare of Celis' two older brothers
Officials said, as a result, the two brothers are now in the custody of just one of their parents.
Tucson Police Lt. Fabian Pacheco said during the course of the ongoing investigation, detectives felt the need to get CPS more involved.
"They determined there was a need to institute some measures to ensure the welfare of the older siblings," Lt. Pacheco said.
He would not provide details on the needs for CPS involvement, nor would he say which of the parents are with the children.
"I know that it raises a lot of questions as well, but unfortunately due to the sensitive and delicate nature of the investigation, we are not able to share additional details of why we're at this point," Lt. Pacheco said.
Sergio and Rebecca Celis responded to scrutiny about their involvement in their daughter's disappearance in an interview last week.
"People can accuse as much as they want, go for it, go right ahead, we're strong enough to take it and there's nothing you're going to find from it," Rebecca Celis said.
Tucson police say they've received more than 1,000 tips since Isabel disappeared.
They released this statement in regards to CPS' involvement:
In the course of the continuing investigation into the disappearance of six year-old Isabel Celis, the Tucson Police Department has been in contact with Child Protective Services (CPS). Recently, detectives became aware of information regarding the welfare of the older Celis children. That information was shared with CPS for their consideration and determination relating to this investigation. Yesterday, CPS personnel responded to police headquarters to consult with detectives as well as the family. Subsequent to their assessment, CPS instituted certain measures to ensure the continued welfare of the Celis children. It needs to be stressed that is common practice for CPS to become involved in investigations regarding missing children. However, in keeping with our commitment to keep members of the media and our community informed of changes or developments in this investigation, we felt it important to advise you of the increased involvement of CPS.
Finally, because of the sensitive nature of this investigation, we will not be providing any additional information on this situation at this time.