According to Global News, the staff at the facility were unaware that the woman, who had been housed there for about 10 years, was pregnant.
Alejandro Benally, chief of the San Carlos Apache Police Department, said that the matter is under the jurisdiction of the Phoenix Police Department and that his department would assist the department in any way possible.
Sources claimed the patient required round-the-clock care and "many people" had access to her room.
It has been revealed the 29-year-old woman was an enrolled member of the San Carlos Apache tribe, whose reservation is in south-eastern Arizona.
Social media was flooded with outrage over why police will not call the investigation of a woman in a vegetative state being impregnated, then giving birth a sex crime.
Phoenix police Sgt. Tommy Thompson said Wednesday the woman and child, who was in medical distress after being delivered December 29, remain in the hospital.
And so a few days after Christmas, her caretakers were flummoxed when she went into labour.
A Hacienda Healthcare spokesperson told AZ Family that it has been in business for over 50 years and has "an outstanding reputation". We had consulted attorneys to determine whether it would be legal for our company to compel our employees to undergo DNA testing conducted through Hacienda or for Hacienda to conduct voluntary genetic testing of staffers.
The incident also prompted Hacienda HealthCare CEO Bill Timmons to resign yesterday, after the incident put a spotlight on the safety of long-term care settings for patients who are severely disabled or incapacitated.
A Hacienda board member says the facility "will accept nothing less than a full accounting of this absolutely horrifying situation". In 2013, a male employee was found to have made sexually explicit remarks to patients, though no physical or sexual abuse allegations were made and the employee was sacked.
INSIDER also uncovered state records of two other disturbing reports at the facility. Doing background checks isn't enough, said Erica McFadden, executive director of the Arizona Developmental Disabilities Planning Council.
The care center received a "below average" rating from health inspectors in 2017 but holds a " rating on the Medicare website.
"We're just trying to get more information".
"I can't believe that somebody would bathe her daily for nine months and never know that she wasn't having a period, that she [was] growing in her midsection, that nurses weren't keeping track" of her weight, the person said. "I myself have come in a back way many times with no one noticing me", the caregiver said.