An elderly woman is in hospital with moderate injuries after falling down a manhole in South Auckland today.

St John ambulance northern communications spokeswoman Jennifer Porter said the accident happened on Coxhead Rd, Manurewa, and the woman was taken to Auckland City Hospital by ambulance.

Fire communications spokeswoman Megan Ruru said the woman had been half in and half out of the hole when fire crews rescued her.

It was not immediately clear how the woman had fallen into the manhole.