An Auckland woman is recovering in Middlemore Hospital following a serious assault in Otara overnight.
Detective Senior Sergeant Ross Ellwood said the random assault took place on Gilbert Rd around 1am.
"We have a female victim in Middlemore Hospital with a fairly serious injury."
The 27-year-old woman remained in a serious, but stable condition, Mr Ellwood said.
"We're speaking with witnesses and following a number of lines of inquiry- we're early days yet."
Earlier reports suggested the woman had been attacked with a bar.
Mr Ellwood confirmed a weapon had been used.