Detectives have charged three more alleged youth gang associates with drug supply offences in Sydney and seized 40kg of illicit drugs valued at $12.5 million.

Following extensive investigations into the alleged KVT gang, about 5.30am yesterday, detectives executed a search warrant at an address in Edmondson Park.

Police arrested a 28-year-old man, who was taken to Liverpool Police Station and charged with multiple offences, including knowingly directing the activities of a criminal group and supplying prohibited drugs on an ongoing basis.

Taskforce Falcon have charged three KVT associates.Taskforce Falcon have charged three alleged KVT associates. (NSW Police)

He was refused bail to appear in Liverpool Local Court today. 

Just before 5am yesterday, officers stopped a vehicle on the Great Western Highway at Glenbrook.

Police arrested the 28-year-old driver.

He was taken to Springwood Police Station, where he was charged with an array of offences, including supplying prohibited drugs on an ongoing basis, participating in a criminal group and four counts of supplying prohibited drugs greater than the indictable amount and equal to a large commercial quantity.

Detectives located and seized approximately 40kg of illicit drugs.Detectives located and seized approximately 40kg of illicit drugs. (NSW Police)

He was refused bail to appear in Penrith Local Court today.

About 6.30am yesterday, detectives also arrested a 24-year-old man in Peakhurst.

He was taken to Kogarah Police Station, where he was charged with multiple offences including two counts of supplying prohibited drugs greater than a large commercial quantity, dealing with proceeds of crime greater than $5000 and failure to comply with digital evidence access order directions.

He was refused bail and will appear in Sutherland Local Court today.

During the search warrants, detectives located and seized approximately 40 kilograms of illicit drugs with an estimated street value of $12.5 million.

The charges relate to the alleged supply of approximately 55kg of illicit drugs, with an estimated street value of $16.5 million.

The men were charged with alleged drug supply offences. The men were charged with alleged drug supply offences. (NSW Police)

Strike Force Duncan initially began to investigate the illegal activities of organised crime networks.

These operations included the theft, supply, and staging of alleged “kill cars”, as well as drug supply.

In September, strike force detectives began investigations into the alleged drug supply activities of three men linked to the KVT gang.