Dutch cops say they have smashed a massive cocaine smuggling operation run by Colombians hiding in a local riding school that was producing up to 6 million EUR of the drug a day. The cocaine laundry operation was located at the horse riding stables in the village of Nijeveen in the Dutch province of Drenthe. The high-tech laboratory involved taking in items that had been soaked in liquid cocaine usually dissolved another substance where the drug was washed free – and extracted for sale on European markets.