Woman flung down bank after being struck by a vehicle early this morning in the Wellington suburb of Wainuiomata

Wellington Free Ambulance officers assessed the woman's injuries as serious. Photo/Supplied.

A woman was thrown three metres down a bank when she was struck by a vehicle in the Wellington suburb of Wainuiomata this morning.

Wellington Free Ambulance spokeswoman Diane Livingston said a 32-year-old woman was assessed at the scene as being in a serious condition and was flown by Lifeflight Rescue Helicopter to Wellington Hospital.

The woman had a fractured arm and minor head injuries, but ambulance staff always erred on the side of caution with head injuries, Livingston said.

A hospital spokesman said the woman was still being assessed in the emergency department.

A police spokesman told the New Zealand Herald emergency services were alerted just before 6am.

A member of the public called police and said a woman had been thrown three metres down a bank after being struck by a vehicle on Coast Rd.

"They could hear a female and there were shoes and a bag on the road."

He did not know if the driver of the vehicle which struck the woman had stopped.

Police are investigating.