The NSA monitored communications of the leaders of Brazil and Mexico, Guardian journalist Glenn Greenwald said in an interview on Brazilian television, according to the Associated Press.
The revelations come days before President Obama is to travel to Russia for a meeting of the G20.
Greenwald told the Brazilian television program “Fantastico” that he has a document indicating Mexican President Enrique Pena Nieto’s emails were being read. The document is dated from June 2012, a month before Nieto was elected.
National Security Agency leaker Edward Snowden has leaked thousands of documents related to the U.S. surveillance programs to Greenwald.
The document from June 2012 shows who Nieto was considering for appointments to key government posts, according to the AP report.