The 62-year-old was killed while on a Kaihu property just before midday.
Detective Senior Sergeant Shane Pilmer said the three dogs involved lived on the property and are now with Animal Management.
"This was a very upsetting and tragic event in which a woman has suffered unsurvivable injuries," Pilmer said.
"I know the community will have a lot of questions; our investigation is still in the early stages and our focus is on establishing all the facts in this case.
"What we can say is that the three dogs involved live on the property, and the woman was visiting a person known to her when the attack occurred."
Pilmer said police wanted to hear from anyone in the Kaihu community who has had issues with dogs roaming in the area.












Comment: See also: 4-year-old killed by lioness in Gujarat, India - 2nd such incident for the state in 2 months
To provide some context the whole of the Indian lion population (which exists solely in the state of Gujarat) according to Wikipedia stands at just 891 individuals: Illustrating the rare and atypical nature of this event for Asiatic lions, Wikipedia also mentions only 2 other recent killings - in 2012 and 2013: