Madrid - Four members of an infamous Mexican drug-trafficking cartel have been arrested in Madrid, Spain's interior ministry said on Friday, including the cousin of Mexico's most wanted man.
The Sinaloa Cartel, run by Joaquin "Shorty" Guzman, was trying to set up a European operation based in Spain, the ministry said in a statement.
One of the people arrested is a cousin of Guzman, nicknamed "El Chapo" in Spanish.
The arrests were part of an operation dubbed "Dark Waters", which began in 2009. Spanish officials involved in the operation seized a container with 373 kg of cocaine in the port of Algeciras in July.