The takedown of a $4.7 million methamphetamine and heroin operation in Kansas City earlier this month has fueled federal grand jury indictments against 39 defendants, including 20 Mexican nationals, according to the U.S. Attorney for the Western District of Missouri.

The arrests stem from a conspiracy to distribute more than 335 kilograms of methamphetamine and 22 kilograms of heroin over the past two years. The bust involved 140 officers and agents from 14 state, local and federal agencies, according to a statement from U.S. Attorney Teresa Moore.

“This operation took a significant amount of illegal drugs off the street, and disrupted a large Mexican drug-trafficking organization in the Kansas City metropolitan area,” Moore said in the statement.

Five suspects also are charged in a money-laundering conspiracy to transport the drug operation’s proceeds to Mexico.

On June 8, the statement reads, “officers executed 16 search warrants and seized 84.4 kilograms of methamphetamine, 4.5 kilograms of heroin, 10.4 kilograms of fentanyl, 7.6 kilograms of cocaine, 10.5 kilograms of marijuana, 687 Xanax pills, 3.1 kilograms of unknown pills, a quantity of bulk cash, five firearms, a 3D printer with manufactured ghost gun parts, and a liquid methamphetamine conversion lab.”

The bust was an outgrowth of the “Organized Crime Drug Enforcement Task Forces” of the U.S. Department of Justice. The OCDETF “identifies, disrupts, and dismantles the highest-level criminal organizations that threaten the United States using a prosecutor-led, intelligence-driven, multi-agency approach.”

Authorities also are seeking the forfeiture of $4.7 million in drug money, as well as $277,440 seized from one suspect’s car and $51,445 seized during the execution of search warrants.