Emergency services were called to Marine Pde at 3:40pm.
"The experience I've had with them have now led to my moko now being hurt again."
The boy was beaten in his home.
Oranga Tamariki failed to consult the wider whānau, who had been looking after the child.
The teenager had "extensive" injuries after his face was "whacked into concrete".
The child's family says they don't know how he was injured.
One person was taken to hospital.
It comes nearly two weeks after the death of their colleague.
"This is greed, pure and simple."