The Auckland SPCA is hoping the public can help find who is responsible for "one of the worst cases" of animal cruelty they've ever seen.
Chief executive Christine Kalin said a dog was dumped in a cardboard box at the end of a driveway in Alfriston Road, Manurewa, last Friday afternoon.
"Thank goodness [the woman who found it] took pity on the dog, brought it in, put it in more comfortable blankets and immediately phoned our SPCA line and an inspector went out," Ms Kalin said.
She said the dog was so emaciated it could not stand, its bones were shown and its claws were seriously overgrown.
"The dog was in a very emaciated state and in a very poor condition. It has serious health-related issues because of the emaciation. Its coat is in an extremely poor state.