At a U.N. General Assembly meeting Monday morning, Brazilian president Dilma Rousseff sharply criticized the U.S.’s international spying programs that have conducted surveillance on, among other countries, Brazil. Calling the NSA’s recently revealed programs a “global network of international spying,” Rousseff argued they represented a “breach of international law and an affront to the principles that should govern relationships among countries, especially friendly countries.”

Last week, Rousseff postponed a visit to the United States in response to leaks indicating that the NSA had targeted the leaders of several allied nations, including Brazil. Rousseff demanded an apology from President Obama and no new date has been set for a meeting.

President Obama spoke immediatetly after Rousseff at the U.N. and did not directly respond to her criticisms, though he did say that America has “begun to review the way that we gather intelligence” and planned to consider the “privacy concerns that all people share.”