Police have confirmed that a major Police operation targeting the Head Hunters is currently underway in parts of the Bay of Plenty as well as greater Auckland, Waikato and Northland.

Just after 6am this morning, nearly 180 police officers triggered search warrants at more than 30 properties across Auckland.

Around 180 police staff are involved in raids involving the Head Hunter Motorcycle club. Photo: Supplied.

Searches are also underway in Tauranga, Huntly and Ruakaka.

Detectives from the Organised Financial Crime Agency, who are leading the operation, are being assisted by officers from Auckland City, Waitemata, Counties Manukau, Bay of Plenty, Northland and Waikato police districts.

The Armed Offenders Squad have been involved at several locations as a precautionary measure, and police can confirm they are currently deployed at Marua Road in Ellerslie.

Today's raids are the termination phase of Operation Sylvester - a police investigation into the criminal activities of the Head Hunters, including the alleged large-scale production and supply of methamphetamine by a syndicate of members and affiliates.

'The ripple effect that this criminal offending has on law-abiding New Zealanders can't be underestimated,” says Detective Inspector Bruce Good.

'Today aims to reduce the very real harm that this drug continues to cause people across all sectors of our community.

'This is not about targeting people solely because they are in a gang. It's about their criminal activity which continues to drive crime that, in turn, affects all of us throughout New Zealand.

'We're also planning to seize assets today worth around $4 million, including a large number of very expensive, high-end cars, machinery, bank accounts and property.”

A number of people have been detained by police in the past few hours and are now being interviewed in relation to manufacturing and supplying meth, money laundering, unlawfully possessing firearms and fraud.