A woman has been charged with kidnapping the 4-day-old baby of a mother she befriended while posing as a hospital worker, and then leaving the newborn in stifling heat a day later.

Stephanie Lynn Jones, 33, was indicted Tuesday on charges of kidnapping and abandoning a child.

She is accused of taking the baby, who suffered from jaundice, from the family's home June 4, prompting an area-wide alert.

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The infant's mother, Erica Ysasaga, said Jones befriended her during several visits to University Medical Center, where the baby was born. Jones allegedly then went to the woman's home and disappeared with the newborn while Ysasaga was momentarily distracted by her toddler son, police said.

Police said Jones left the newborn in a car seat underneath a carport the next day.

Two days before the abduction, Jones told the manager of the mobile home park where she lived with her husband that she had just had a baby. The manager said she was skeptical because Jones had not appeared to be pregnant.

Police received an anonymous tip of the baby's whereabouts.

Jones was in jail Wednesday in lieu of bond. Her attorney would not comment.