AUSTIN  - A federal grand jury  indictment was unsealed today against 14 defendants, including Los Zetas leader Miguel Angel Trevino Morales, also known as "40," and his brothers, Oscar Omar Trevino Morales,  also known as "42," and Jose Trevino-Morales,  for conspiracy to launder Los Zetas drug profits, according to the U.S. Attorney General's Office.

The defendants used drug profits to purchase, train, breed and race American quarter horses in the United States, federal authorities state.

Earlier today, federal law enforcement officers arrested seven of the 14 indicted defendants, including Jose Trevino-Morales and his wife Zulema Trevino in Lexington, Oklahoma.

Los Zetas are a powerful drug cartel in Mexico and generate multi-millions of dollars through drug trafficking.

The indictment also seeks a monetary judgment in the amount of $20 million, representing the amount of money derived from the defendants' scheme, according to federal authorities.