Up to 400 marijuana plants have been seized by police during a raid in Doveton.
Springvale Divisional Response Unit officers entered a former milk bar on the corner of Chestnut Road and Cassia Avenue about 7am on Wednesday 3 August.
They estimated the crop comprised between 300-400 plants.
The premises were unoccupied at the time, police say.
The investigation is ongoing.
Any information to Crime Stoppers on 1800 333 000.