Australian police have seized some 6,000 cannabis plants found in the south-eastern state of Victoria. Victoria police said agents on Tuesday discovered “a sophisticated hydroponic set-up … in several commercial-sized hot houses” as they searched a rural property in Leongatha South, some 100 kilometres south-east of Melbourne. Police said in a statement late on Thursday that four men and one woman, all Vietnamese nationals of ages ranging from 25 to 54, were arrested at the scene. They were charged with cultivating and trafficking a commercial quantity of cannabis. An estimated the overall c…