(CNN) — A former high-level Drug Enforcement Agency agent was indicted on and federal charges of conspiring to traffic drugs and launder millions of dollars for a Mexican cartel.

Paul Campo, who was a DEA agent for nearly 25 years, and his associate Robert Sensi, are accused in a new indictment unsealed Friday of converting cash into cryptocurrency to buy 220 kilograms of cocaine, worth $5 million, and launder $750,000 in proceeds from drug sales for the Jalisco New Generation Cartel, or CJNG. The State Department designated CJNG as a foreign terrorist organization earlier this year.

Campo pleaded not guilty to the charges Friday and was detained.

Prosecutors in the Southern District of New York allege the men agreed to launder at least $12 million for the cartel.

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