# Law enforcement drug operations in Argentina and Uruguay > Developing situation record from CLSTR: https://clstr.news/situations/law-enforcement-drug-operations-in-argentina-and-uruguay > Updated: 2026-11-06T13:27:37.000Z. Sources: 71. Developments: 2. Law enforcement agencies in Argentina and Uruguay have conducted several operations targeting drug trafficking and distribution. In Argentina, police in Tucumán dismantled a suspected network involving mystical gatherings and the consumption of prohibited substances in Yerba Buena and San Javier. During a raid in the La Merced neighborhood, authorities apprehended two women and a Brazilian man, seizing items including ayahuasca, mushrooms, sassafras, and various powders. Prosecutor José Sanjuán is investigating whether these substances were for ritual use or commercial sale. In Coronel Suárez, separate raids led to the arrest of two individuals for alleged drug trafficking. Malco Darío Zerfus was apprehended following an investigation into drug sales involving a vehicle, while Silvina Montes was targeted in a second operation in San José. Authorities seized cocaine, marijuana, a pistol, and cash. In the Cañuelas district of Buenos Aires, police arrested 23-year-old Dylan Benjamín Fernández, known as “Pompón,” in Máximo Paz. Fernández, who was wanted by Interpol, is accused of participating in four homicides linked to a narcotics organization. The investigation is part of a broader probe into a gang allegedly led by Kevin Henderson Valderrama Acosta, which is linked to twelve homicides resulting from drug territory disputes. Recent operations in Chubut, under the Escudo Sur initiative, resulted in the interception of a vehicle in Arroyo Verde containing over 11 kilograms of cocaine and the arrest of two men. In Santa Elena, three individuals were detained after police seized 273 grams of cocaine and over 650,000 pesos in cash. In Corrientes, authorities seized approximately half a ton of marijuana in Clorinda and arrested four people during raids in Cichero and Bejarano. In Uruguay, Operation Bastion in Maldonado resulted in seven arrests and the dismantling of three distribution points. ## Claims - An 11.355 kilogram shipment of cocaine was intercepted in Arroyo Verde, Chubut. (reported by 3 sources) - Chubut authorities seized nearly 100 kilograms of cocaine during the year. (reported by 2 sources) - Neuquén recorded 500 raids and 218 convictions between February 2025 and November 2026. (reported by 2 sources) - Approximately half a ton of marijuana was seized in Clorinda, Corrientes. (reported by 2 sources) - Police in Clorinda seized approximately half a ton of marijuana. (reported by 2 sources) - Prosecutors are investigating a credit portfolio transfer of approximately 74.4 million dollars. (reported by 2 sources) - The investigation involves the firm Vinanzas S.A., which is linked to the Vázquez Group. (reported by 2 sources) - Dylan Benjamín Fernández was arrested in Cañuelas for alleged involvement in four homicides. (reported by 1 source) - Fabián Marcelo C. was arrested in Misiones for allegedly acting as a local link for Brazilian criminals. (reported by 1 source) - A 27-year-old man was detained in Idiazábal, Córdoba, regarding an investigation into fraud. (reported by 1 source) - Police in Formosa seized an Autel MaxiIM KM100 scanner used in vehicle theft operations. (reported by 1 source) - Three people were arrested in Santa Elena for alleged drug trafficking. (reported by 1 source) ## Timeline ### 2026-11-06: Paraguay authorities seize luxury assets in Ueno Bank investigation Paraguayan authorities seized luxury cars, a yacht, and aircraft during investigations into the Ueno Bank collapse and its links to the Vázquez Group. 67 sources. https://clstr.news/cluster/argentina-security-forces-conduct-major-anti-narcotics-and-crime-operations ### 2026-10-30: Police conduct drug raids in Tucumán and Coronel Suárez Police in Tucumán, Argentina, dismantled a suspected ritual drug network, while separate raids in Coronel Suárez led to arrests for cocaine and marijuana trafficking. 5 sources. https://clstr.news/cluster/police-conduct-drug-raids-in-tucumn-and-coronel-surez --- Cite as: Law enforcement drug operations in Argentina and Uruguay. CLSTR, https://clstr.news/situations/law-enforcement-drug-operations-in-argentina-and-uruguay