By Jorge Calvillo (staff@latinospost.com) | First Posted: Sep 07, 2013 01:19 PM EDT

President Barack Obama has promised the President of Mexico, Enrique Peña Nieto, that he will investigate the alleged espionage activities carried out against the then Mexican presidential candidate by the NSA.

According to Univisión, both presidents spoke over the telephone about the recent scandals that involve alleged espionage activities carried out by the United States government against the governments of Mexico and Brazil.

The reply from the American president comes after the Mexican Ministry of Foreign Affairs asked Anthony Wayne, United States Ambassador in Mexico, and the U.S. government for "a thorough investigation" on the alleged espionage carried out by the National Security Agency (NSA) against the then-presidential candidate Enrique Peña Nieto.

During a press conference on the last day of the G-20 Summit, in which both presidents were present, Peña Nieto declared that "Mexico has made a statement on the alleged espionage and demanded a thorough investigation," reported CNN.

"Mexico has made it clear that there must be an investigation and if there has been any action outside international agreements and outside the law, there must be correspondent sanctions," said the Mexican president.

Mexico's petition comes after Glenn Greenwald, an American journalist, exhibited documents on the alleged espionage acts carried out by the NSA against the Brazilian president and former Mexican presidential candidate during an appearance on a Brazilian television channel, reported El Mundo on September 2.

At the end of his intervention during the G-20 Summit, the Mexican president returned to Mexico on Friday night to prepare to send the Mexican Congress an economic package for 2014, which he will present on September 8.

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