Actress Kate del Castillo is under investigation on suspicion of money laundering in Mexico, the nation's attorney general told a leading Mexican newspaper in an interview published Tuesday.<br />Del Castillo, a dual citizen of Mexico and the United States, has not been charged with any crime and so far has only been called to give a statement to investigators, Attorney General Arely Gomez told El Universal .<br />The two-pronged investigation - into the actress's links to drug lord Joaquin "El Chapo" Guzman and into the finances of her boutique tequila brand, Honor Del Castillo - will determine if drug money went to her business.<br />There are indications that El Chapo provided illicit funds for del Castillo's tequila business, Gomez told the newspaper, but the links have not been proved.<br />Most of the attention after Guzman's arrest has been on Penn's role and the article he penned for Rolling Stone magazine about his interview with the fugitive kingpin.