Five men have been arrested after police seized more than $2 million worth of heroin.
Police said they intervened in an alleged drug transaction at Blacktown in western Sydney at about 10.30am (AEDT) on Thursday.
About two kilograms of heroin with a suspected street value of $2 million was allegedly seized and a 59-year-old Blacktown man was arrested.
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A large amount of cash was also seized.
A 50-year-old Penrith man and a 41-year-old St Marys man were arrested nearby, while a 48-year-old Kingswood man was arrested near Liverpool in Sydney's south-west.
A 46-year-old Cronulla man was arrested at his home.
The first four men are expected to be charged with offences relating to the commercial supply of heroin.
The Cronulla man is expected to be charged with supplying a prohibited drug and fraud.
The men are expected to face court on Friday.
The arrests were part of an investigation into heroin supply, which has seen more than $1 million of high-grade heroin seized since July.
Police investigations have revealed heroin was being supplied from vehicles in various locations across western Sydney.
Thursday's seizure brought the value of heroin seized to $3 million.
