Armed police have arrested two man after an illegal methamphetamine lab was found in a house in the Bay of Plenty town of Te Puke.
Police said when they searched the house they found a "significant clandestine laboratory".
A 35-year-old man was charged with the manufacture and supply of methamphetamine and a second man, 55, was charged with allowing a house to be used for offences against the misuse of drugs.
Detective Senior Sergeant Lindsay Pilbrow, of western Bay of Plenty CIB, said two men, a woman and an 11-year-old child were at the house when armed police arrived to search it.
The child was referred to Child Youth and Family and further charges may follow.
"This was a significant sized clan lab operation that was fully operational in a residential area. Police will be using the specialised clan lab team from Auckland to dismantle and analyse the large amount of chemicals and equipment that have been located at the property," said Mr Pilbrow.
"Combined with the fact that this was illegal drugs activity, it is also very concerning that an operation like this has been established in a residential area, with a number of other people and children living nearby.
"Clandestine laboratories are dangerous operations, and all of these people could have been harmed."
He urged anyone who noticed suspicious activity to call police.
Police had earlier said some of the indications of a methamphetamine (P) lab were constant running water, chemical smells and blacked out windows.