A four-month investigation by police and Customs has resulted in three Palmerston North men being arrested on a raft of drug-dealing charges.
The young men were detained on Thursday morning after about 20 police and Customs officers stormed four Palmerston North addresses.
One of the raids involved the armed offenders squad.
During the raids, police seized chemicals and drug manufacturing equipment.
A 20-year-old has been charged with six drug dealing offences, and a 26-year-old has been charged with five.
They will appear in Palmerston North's District Court on Friday.
A 19-year-old is bailed to appear in Palmerston North District Court next week on four drug dealing charges.