RABAT, April 27 (Xinhua) -- Moroccan Police on Wednesday seized 31 tonnes of cannabis in the northern city of Tangier in its largest-ever drug bust operation, official news agency MAP reported.

       The operation raided a warehouse in the suburb of Tangier, where drugs were packaged for international smuggling, the report said.

       One person, aged 61, known for his criminal record of international drug trafficking, was arrested, it said.

       The banned substance, packaged in dozens of bags, was discovered inside a large refrigerated trailer, where they were wrapped and stuffed in a way that mimics the color and size of different types of fruits and vegetables.

       Meanwhile, the Moroccan navy on Wednesday foiled an attempt to smuggle about 1.5 tonnes of cannabis off the coast of the Mediterranean city of Al Hoceima, reported the MAP.

       The speedboat carrying the cannabis fleed after throwing the drugs into the sea.

       Despite efforts to crack down on cannabis cultivation during the past decade, Morocco remains one of the world's largest producers of the narcotic plant, according to the UN Office on Drugs and Crime.