Three men have been arrested after a swoop on a drug ring allegedly operating out of Auckland internet cafes

Cannabis, MDMA and thousands of dollars in cash have been seized in the sting.

The arrested trio are facing a range of drug supply charges and are due in Auckland District Court today.

Detective Senior Sergeant Greg Brand says further arrests are likely.

He's reminding business owners they could be liable if they turn a blind eye to drug dealing at their premises.