The iron was shipped to China by a gang known as Knights Templar.

TradeWinds reported that the 73,700-dwtJian Hua (built 2000) was detained at the western port of Manzanillo with nearly 68,800 tonnes of iron ore on board.

The Platts news agency reported Mario Cantu, Mexico's general coordinator of mining, as saying: "From that moment, the General Coordination of Mines developed a procedure in conjunction with the ministry of finance, customs, port authorities, to [investigate] where the iron ore to be exported comes from, so [the authorities] can combat illegal mining - which is giving resources to organized crime in the area of Michoacan."

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