Mexican authorities want to question US actor Sean Penn and Mexican actress Kate del Castillo over their interview with drug kingpin Joaquin "El Chapo" Guzman, a federal official told AFP on Sunday.
"That is correct, of course, it's to determine responsibilities," the official said on condition of anonymity.
The official refused to provide more details about the bid by the attorney general's office to speak with the actors over their clandestine meeting in October with the then-fugitive.
A second federal official said it was unclear whether Penn and del Castillo committed a crime.
While a reporter could interview a drug cartel suspect, "they're not journalists," the official said.
The US rock magazine Rolling Stone published on Saturday the interview that Guzman gave to the actors in an undisclosed jungle clearing in Mexico, three months before he was recaptured.
A Mexican official told AFP that the meeting eventually helped authorities track down Guzman, 58, who was arrested on Friday in the seaside city of Los Mochis, in his northwestern home state of Sinaloa.