Woman in coma after falling 10m from industrial vehicle at Port Botany

A woman is in an induced coma after falling about 10 metres off an industrial vehicle in Port Botany.

The woman, 54, was at an industrial worksite at Hutchinson Ports when the accident occurred just after midday.

NSW Ambulance Acting Superintendent Steven Vaughan told 9NEWS the woman was working at the site when she had a "significant fall".

A specialist medical trauma unit, including a doctor and a critical care paramedic, and two paramedic crews were deployed to treat the woman.

"On their arrival, (paramedics) found a female, approximately 50 years of age, who had fallen eight to 10 metres from some machinery at Port Botany," Acting Superintendent Vaughan said.

"The crews arrived, assessed and treated her, stabilised her and she was transported to St George Hospital in a critical condition."

She has sustained multiple serious injuries, including a closed head injury, a broken leg and a broken arm.

The woman is now undergoing treatment at St George Hospital.