(CNN) The United States has charged two sons of drug lord Joaquin "El Chapo" Guzmán Loera with conspiracy to distribute drugs to be imported into the country, the Justice Department announced Thursday.

The indictment of Joaquin Guzmán Lopez, 34, and Ovidio Guzmán Lopez, 28, who the DOJ says are believed to live in Mexico, was unsealed last week.

From April 2008 through April 2018, the brothers conspired to distribute cocaine, marijuana and methamphetamine from Mexico and other places to be imported into the United States, prosecutors said.

It was not immediately clear if the two had legal representation. CNN has reached out to attorneys for the elder Guzmán.

Guzmán, 61, once headed a criminal enterprise that spanned continents and triggered bloodshed throughout his native Mexico.

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