A baby girl is undergoing emergency surgery in a Sydney hospital after she allegedly fell from a cot in a Lithgow home.
The 11-month-old was found unresponsive in the home, west of The Blue Mountains, when emergency services were called just before 8.50pm on Sunday.
She was taken to Lithgow Hospital before being airlifted to Westmead Children's hospital where she's in a critical condition with serious head injuries.
Police were told the girl fell from the cot, but an investigation is underway.
Police say the girl lived with a carer, reportedly her aunt. The woman was not at home and it was her partner who called emergency services.
Police say the pair is co-operating with authorities.
A crime scene has been established at the home and specialist forensic officers are on site.
