Police have seized more than 1000 cannabis plants in Epping and Campbellfield.
Police executed search warrants at two factories on Constance Court, Epping and a factory in Halley Crescent, Campbellfield at about 11am on Thursday, April 13.
Police seized more than 1000 cannabis plants.
Hydroponic set-ups were also located at the properties.
Police say that no arrests have been made at this time and the investigation remains ongoing.
Anyone with information about organised criminal or illicit drug activity is urged to contact Crime Stoppers on 1800 333 000 or make a confidential report at www.crimestoppersvic.com.au