Police have seized meth worth $1m when executing search warrants in Māngere in relation to a recent firearms incident.
Detective Inspector Lloyd Schmid said Operation Cobalt staff had been executing search warrants in Māngere late last week when the discovery was made.
"Police were at the addresses in relation to a firearms incident in Auckland City that had occurred in late September," he said.
"At a Bader Drive address staff came across a number of illegal items, such as drugs, which have been seized."
Police located around 4km of methamphetamine, with a street value estimated at more than $1.1 million, as well as more than a kilogram of what is believed to be a precursor of the drug, police said.
A prohibited magazine, cannabis and nearly $8000 in cash were also seized at the property.
A 34-year-old patched Comanchero member located at the address has since been arrested after the find and is before the Manukau District Court.
The man is has been charged with possession for supply of methamphetamine, amphetamine, and cannabis, along with a charge of unlawfully possessing a prohibited magazine.