Police in Phoenix are investigating a sexual assault at a nursing facility after a patient in a vegetative state became pregnant and gave birth. Police have been stationed outside Hacienda Healthcare over the last few days. It is now under criminal investigation, as state investigators try to determine how the woman got pregnant, reports CBS News correspondent Omar Villafranca.

Parents of other patients inside Hacienda Healthcare are furious and demanding answers.

"A lot of people are mad – my family included," said a father, Gary Londer.

"My heart hurts, my chest hurts. I haven't been able to sleep good at night because of what occurred here," a mother, Angela Gomez, said.

They're concerned for the safety of their loved ones after a female patient, who's been in a vegetative state for 14 years, gave birth.

"Everybody was up in shock," said another mother, Karina Cesena.

Cesena's 22-year-old daughter, Jazzmyne, has been a patient at Hacienda Healthcare for about two years. Now, Cesena is not leaving her side.

"Trust has been broken and severed completely," Cesena said.

Sources familiar with the case tell CBS Phoenix affiliate KPHO the woman has been a patient at Hacienda Healthcare for more than a decade after a near-drowning incident left her incapacitated. A source tells KPHO she delivered a healthy baby boy on Dec. 29, but none of the staff inside the clinic knew the patient was pregnant until she began moaning shortly before going into labor.

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