A witness sees a woman push a stroller from a subway car after its doors open . She leaves the car and gets on the train , and she continues riding the train . Police say the baby girl is in stable condition and not malnourished . New York police have interviewed a 20-year - old woman , say she 's the baby 's mother .
A witness sees a woman push a stroller from a subway car after its doors open . She leaves the stroller and baby on the platform , and she continues riding the train . Police say the baby girl is in stable condition and not malnourished . New York police have detained a 20-year-old woman , say she 's the baby 's mother .