NSW Police say officers 'following the money' as part of a money-laundering investigation have helped dismantle a cocaine supply ring operating in Sydney.

Three men were arrested and charged last week over their alleged roles in a criminal syndicate as part of Strike Force Bugam, a joint investigation between the NSW Police organised crime squad and officers from the Australian Criminal Intelligence Commission, into international money laundering syndicates operating in Sydney.

Australian Criminal Intelligence Commission state manager Warren Gray and Detective Superintendent Scott Cook. Credit:Peter Rae

It brings to 18 the total number of arrests by the strike force since its inception in June last year.

The latest busts came after investigators looking into cross-border money laundering identified an alleged cocaine supply syndicate, trafficking cocaine from Thailand. The drug syndicates were uncovered as various transactions were traced through the money laundering process.