Around 8am Tuesday, October 15, police disrupted several vehicles as they arrived at the Ryall Place residence, during which three men fled on foot.

The three men, of Vietnamese nationality, were arrested with the assistance of the Dog Squad and Chifley Rescue Unit.

Arrests in relation to the enhanced indoor cannabis cultivation were also made near Bowenfels, Marrangaroo and Windradyne.

Around 5.45pm Monday, October 14, officers attached to Traffic and Highway Patrol stopped a white Lexus being driven by a 38-year-old Regents Park man on the Great Western Highway near Bowenfels for the purpose of a random breath test.

The vehicle was searched and property suspected of being connected with enhanced indoor cannabis cultivation was seized.

The man was released and an investigation commenced in respect to the seized property.

Following inquiries, police attended a house on Oakey Forest Road at Marrangaroo where they located an elaborate hydroponic cannabis set-up.

A 66-year-old Vietnamese man, who is in Australia unlawfully, was arrested and a crime scene established.

Approximately 60 cannabis plants were seized.

Officers then attended a home on Stonestreet Place at Windradyne where a stockpile of equipment used in the indoor cultivation of cannabis was located.

A 41-year-old Vietnamese man, who is in Australia unlawfully, was arrested and a crime scene established.