A Mexican drug-trafficking network used accounts at Bank of America to hide money and invest proceeds into U.S. quarter horses that have raced at Ruidoso Downs according to the Federal Bureau of Investigation.

The Wall Street Journal reported that the FBI tied the Los Zetas Cartel and B of A in a affidavit filed in a Dallas Federal Court last month.

The Los Zetas allegedly had a horse buying and trading business which used accounts from Bank of America to launder money.

Members of the Los Zetas, Jose Trevino and Miguel Morales, were indicted last month for their alleged roles in a conspiracy to launder Zetas money through the purchase of American Quarter Horses.

A Bank of America spokesman told the Wall Street Journal, “We have robust anti-money laundering processes and procedures that comply with regulatory and legal requirements. When we become aware of suspicious activity conducted through customer accounts, we take immediate action and report it to the appropriate authorities.”

The affidavit has a dozen transactions since late 2009 in which $1.5 million was deposited or withdrawn from two accounts at the Charlotte, NC based bank. Bank of America is not accused of any wrong doing in the case and is cooperating in the case.

Story was first published in the Wall Street Journal. You can read the full article here.