Six Nomad gang members have been arrested in Pātea and will face charges including aggravated robbery and participating in an organised criminal group.
The men, aged between 19 and 40, were arrested as part of Operation Cobalt.
Five have been remanded in custody.
South Taranaki Response Manager Acting Senior Sergeant Andrew Russ said the arrests were made between March 17 and May 5 May following investigations targeting unlawful conduct by members of the Nomad gang.
The investigations involved members of the Armed Offenders Squad and CIB, and included a number of search warrants.