Xanax worth $12 million seized in largest NSW bust

A man will face court after more than 700 kilograms of Alprazolam, also known as Xanax, was found in storage unit in western Sydney.

The $12 million haul marks the largest single seizure of pharmaceutical drugs in NSW history, police said in a statement on Thursday.

A bottle of Alprazolam, also known as Xanax.
A bottle of Alprazolam, also known as Xanax, seized at a property in Auburn in Sydney's west. (HANDOUT/NSW POLICE)

A total of 722kg of the drug was uncovered during a search of a storage unit in Auburn on Sunday.

As part of the investigation, police stopped and searched a truck at Wagga Wagga, in the state's south, on Wednesday evening.

Officers allegedly located shopping bags containing almost $1 million in cash.

Some of the cash seized by NSW Police.
Some of the cash seized by NSW Police. (HANDOUT/NSW POLICE)

The 28-year-old male driver was charged with supplying a greater than large commercial quantity of a prohibited drug and knowingly dealing with the proceeds of crime.

He was refused bail and will appear before Wagga Wagga local court on Thursday.