Eight people had been arrested with 3,222 cannabis plants, more than 20,000 cannabis seeds and six cannabis pot plants.
Police also seized two .22 rifles, ammunition, cash and electronic devices while they raided six properties in Fanga, Foʻui, Matahau and Sopu.
The men, aged between 16 and 42, were arrested after a public tip off to Police.
“Tonga Police are committed to disrupt and detect the supply of drugs where thereby preventing the harm this illegal activity causes,” Acting Commissioner Viliami ʻUnga Faʻaoa said.
“It only takes one call to Police to stop crime and the availability of drugs in your community,” he said.
Evidence and prosecution files are being progressed therefore Police cannot comment further at this stage, a statement says.
As always, the Police rely on members of the public to pass on any information about drug cultivation,manufacture and dealing, Faʻaoa said.
Any information on drug offences the public can contact various Police stations or get in touch anonymously via 23417 or 25147.