Kate del Castillo, the actress who helped set up Sean Penn's Rolling Stone interview with drug lord Joaquín "El Chapo" Guzmán, has been subpoenaed in a Mexican investigation of alleged money laundering, the country's attorney general said Tuesday.
Attorney General Arely Gómez González confirmed in an interview with the national newspaper El Universal that her office has opened an inquiry into companies del Castillo owns or is associated with.
Gómez said there are indications that Guzmán or his associates gave del Castillo "resources" for Tequila Honor Del Castillo, a liquor business she started in November with a Mexican winery, and possibly other businesses associated with the popular telenovela actress.
Related: Who Is Kate del Castillo, And What Did She Write to El Chapo?
Guzmán reportedly had been trying to meet del Castillo since September to jump-start a possible biopic about his life and crimes.
Gómez said del Castillo — a dual U.S.-Mexican citizen who hasn't been charged with any crime — has the option to appear in Mexico or at the Mexican consulate in Los Angeles.
Related: Kate del Castillo Breaks Silence on El Chapo: Don't Believe Everything Said About Me
A Mexican law enforcement official told NBC News last week that authorities there want to speak with Penn as well as del Castillo, but Gómez stressed Tuesday that Penn isn't under formal investigation.
Del Castillo hasn't said much publicly since Guzmán's arrest, except for two Twitter posts last week (one in English, one in Spanish) where she said much of what has been said about her is not true and she looked forward to "sharing my story."
