Cannabis supply chains across Hawke's Bay have been "substantially dented" after a major police operation netted more than 10,000 plants and saw 43 people arrested or warned for cultivation.
Detective Senior Sergeant Brent Greville said police were pleased with the results of what has become an annual summer focus on the cannabis industry and which saw outdoor and indoor growing plots uncovered.
It targeted drug dealers, growers and suppliers operating in the Hawke's Bay, Gisborne and East Coast areas.
During searches police also uncovered nine firearms which were seized, as well as items of stolen property including a late model four-wheel drive vehicle.
Those arrested were charged with offences ranging from cultivating cannabis, possession of cannabis for supply, possession of utensils and unlawful possession of firearms.