MEXICO CITY (AP) — Mexico's government says it "categorically condemns" email spying, after a German news magazine reported that documents from National Security Agency leaker Edward Snowden say the U.S. gained access to the email system of former Mexican President Felipe Calderon.
A report posted by Der Spiegel says the documents describe an operation dubbed "Flat liquid" that claim to have accessed Mexico's "presidencia" domain, which was also purportedly used by members of Calderon's Cabinet.
Mexico's Foreign Relations Department says "This practice is unacceptable, illegitimate and contrary to Mexican law and international law."
It says it will send a diplomatic note to the United States, adding that "In a relationship of neighbors and partners, there is no room for the kind of activities that allegedly took place."
Calderon is now a fellow at Harvard's Kennedy School of Government.
Earlier, a document dated June 2012 indicated the NSA had read current Mexican President Enrique Pena Nieto's emails before he was elected last year.
Pena Nieto has said that would be an illegal act if it occurred, and his administration has demanded an investigation.