Two leaders of the Sinaloa Cartel on Tuesday were hit with narco-terrorism charges for their alleged involvement in trafficking "massive" amounts of drugs into the U.S.

Three million pills laced with fentanyl were seized in what federal prosecutors said was the "largest fentanyl bust in DEA history."

U.S. officials have charged leaders of the Sinaloa cartel with terrorism-related charges related to trafficking drugs into the United States. The indictment is the first-of-its-kind in the nation