The United States intensified its campaign against Mexican criminal organisations this week, unveiling consecutive sanctions aimed at disabling alternative revenue streams that fund narcotics trafficking and violence. On Wednesday the Treasury Department’s Office of Foreign Assets Control sanctioned four individuals and 13 companies for operating a timeshare-fraud network on behalf of the Cartel de Jalisco Nueva Generación. The scheme, centred in Puerto Vallarta, allegedly targeted mostly elderly U.S. owners of Mexican timeshares; the FBI estimates about 6,000 victims lost nearly US$300 million between 2019 and 2023. Those newly blacklisted include Julio César Montero Pinzón, Carlos Andrés Rivera Varela, Francisco Javier Gudiño Haro and Puerto Vallarta businessman Michael Ibarra Díaz Jr. The designations freeze any U.S.-linked assets and bar Americans from doing business with the network’s travel, real-estate and tour-operator affiliates. Treasury Secretary Scott Bessent said the action seeks to choke off “diverse revenue streams” CJNG uses to finance fentanyl trafficking. On Thursday Washington widened the crackdown, sanctioning the lesser-known Carteles Unidos and Los Viagras and seven of their members, while the Justice Department unsealed drug-trafficking indictments against five alleged leaders of Carteles Unidos. The accused—Juan José Farías Álvarez, Alfonso Fernández Magallón, Luis Enrique Barragán Chávez, Edgar Orozco Cabadas and Nicolás Sierra Santana—are charged with conspiring to manufacture and export methamphetamine, fentanyl and cocaine to the United States. The State Department offered rewards totalling up to US$26 million for information leading to their capture. Treasury said the Michoacán-based groups finance operations through extortion of avocado growers and other farmers as well as traditional drug sales. All assets under U.S. jurisdiction linked to the sanctioned entities are now blocked, and U.S. persons are prohibited from transactions with them. The twin actions, which follow Mexico’s extradition of 26 cartel suspects earlier in the week, underscore a coordinated push by U.S. agencies to treat the cartels as foreign terrorist organisations and disrupt both their financial and logistical networks.