Justice Department prosecutors unsealed an indictment Monday in federal district court in Manhattan targeting a “stunning and sophisticated” alleged drug trafficking operation in Mexico that is accused of pumping cocaine and marijuana into the United States. The indictment contains a $1 billion forfeiture demand.

Nineteen reputed members of the Gulf Cartel/Los Zetas drug trafficking organization, now known as the “Company,” have been charged in federal court in Washington and in Manhattan for their alleged roles in the drug trafficking conspiracy, Justice Department officials said. A three-count superseding indictment was returned June 9 in the U.S. District Court for the District of Columbia, where members were first indicted in 2008.