“Argentina’s security ministry says it has foiled a plot to use the Russian embassy’s diplomatic courier service to smuggle cocaine to Europe. Police seized nearly 400kg of the drug from diplomatic luggage in an embassy annex after being told about it by the Russian ambassador in December 2016. They then mounted a sting operation, replacing the drugs with flour and adding tracking devices. The operation has led to arrests in Argentina and Russia, officials say.”
Source: Argentina foils diplomatic luggage cocaine plot – BBC News