"Everybody was up in shock", Karina Cesena, whose 22-year-old daughter, Jazzmyne, is a patient at the Hacienda Healthcare facility, told CBS News.
Police have declined to comment on the investigation.More news: Canadian Bianca Andreescu heading to ASB Classic finals
Police are now investigating the case as a potential sexual assault with an anonymous source telling the outlet that staff at the facility did not know the woman was pregnant.
In the statement, Gary Orman, Executive Vice President of the board for Hacienda Healthcare, vowed that the organization "will accept nothing less than a full accounting" of the incident.
In its statement Monday, Hacienda Healthcare said it was continuing to cooperate with the police investigation. It's also unclear if staff members at the facility were aware of her pregnancy until the birth.
Family members of other patients fear there may be more victims at Hacienda HealthCare, which has a history of patient mistreatment. In January 2018, state investigators said the issues "have been corrected", People reported.More news: Michigan Losses 2nd Coach To Ohio State
"We will do everything in our power to ensure the safety of every single one of our patients and our employees", Orman said.
"Trust has been severed, period", she said.
The care center received a "below average" rating from health inspectors in 2017 but holds a "much below average" rating on the Medicare website.
Alejandro Benally, Chief of the San Carlos Apache Police Department said, "At this point, this matter falls under the jurisdiction of the Phoenix Police Department". 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.
The state's Department of Economic Security dispatched a team to conduct health and safety checks at the facility, and the Department of Health Services has beefed up safety measures: more staff, increased monitoring and stronger security. "Whether it's an employee or someone from the outside, the facility has an obligation to protect residents".More news: India's Move to Legitimise Migrants From Neighbouring Countries Sparks Protests