NSW cops probe alleged $80m syndicate

Three people have been arrested as police investigate an alleged $80 million money-laundering syndicate operating in southwest Sydney.

Two men - aged 29 and 30 - were arrested at a Guildford West business on Thursday morning before a 30-year-old woman was arrested at a home in Merrylands West.

They've all been taken to Merrylands Police Station for questioning, NSW Police said in a statement.

Police said they identified links to the alleged syndicate as they investigated large-scale illicit drug supply and organised crime.

Three 22-year-old men were charged in March when officers searched units at Peakhurst and Belmore.

They seized a number of items including three vehicles, $360,000 cash, 600 grams of cocaine and one kilogram of methamphetamine, according to police.