Police investigating a violent attack at a Te Puna home on Friday night are continuing to gather evidence.
Detective Sergeant Iain Chapman said police had not yet arrested anyone but had a good pool of suspects.
"We've completed a scene examination and we're submitting a number of items to forensics both for fingerprints and DNA," he said.
Mr Chapman confirmed two of the victims described seeing one of the attackers with a long barrelled shotgun.
Police had recovered a vehicle, two air rifles, pipes, a baseball bat and a spade that had been used in the attack, he said.
Mr Chapman said a small gathering of about nine family members was under way when 15 to 20 people - unknown to the family - arrived at their Te Puna home and assaulted them.
The victims are still recovering.