Televisa asked the Nicaraguan Attorney General's Office to investigate the group of false Mexican journalists accused in Nicaragua of drug trafficking and other crimes, Attorney General Armando Juarez said.

"The investigation is about whether, in fact, any Televisa employees signed or did not sign the letter (of accreditation they were using on their travels). That is one of the charges that Televisa itself filed in Nicaragua and that we are required to follow up on," Juarez said.

The 18 suspects are Mexican citizens who were arrested in August in Nicaragua while posing as Televisa reporters.

The suspects were trying to smuggle $9.2 million from Mexico to Costa Rica, prosecutors allege.

The suspects were traveling in six vans bearing logos of the Mexican media company and had letters of accreditation allegedly signed by Televisa vice president Amado Narcia, witnesses told prosecutors. EFE