Police have seized drugs and more than 20 firearms after carrying out a search warrant at a Hawke's Bay property.
The operation targeted what police called organised criminal groups.
A 28-year-old man was arrested during the search, after officers descended on a Tannery Road address in Napier early this morning.
Sergeant Kris Payne of the Hawke's Bay Gang Focus Unit said the Armed Offenders Squad was deployed as a precaution and the road was cordoned off while the search warrant was carried out.
"More than 20 firearms, and hundreds of rounds of ammunition have been seized and are now safely in police possession." he said.
Drugs, including methamphetamine, cannabis and MDMA, were seized.
"We know that methamphetamine in particular causes significant harm to communities and demand for it continues to rise," he said.
"This investigation has links to organised criminal groups and by targeting these groups it is possible to disrupt the supply chain and prevent more illegal drugs and firearms reaching our communities.
"This is an excellent result following several months of investigation, and a lot of hard work and dedication across multiple Police workgroups."
The 28-year-old man has been charged with possession of methamphetamine, MDMA and cannabis, unlawful possession of ammunition, and obstruction.
He is due to appear in the Napier District Court on 21 October 2021.
Another man at the address was served with a revocation notice in relation to his firearms licence.
Police said the investigation was ongoing.