Der Spiegel reported Saturday the National Security Administration placed bugs in EU offices in Washington and infiltrated its computer network. The magazine said cyberattacks were also carried out against the EU in New York and Washington.
Der Spiegel said not only did the NSA conduct online surveillance of European citizens, but appears to have targeted buildings housing European Union institutions.
The magazine said the "top secret" 2010 document it received from Snowden showed the Americans gained access to discussions in EU rooms, along with emails and internal documents on computers.
The United States has been trying to get its hands on Snowden, who exposed the NSA's PRISM and other surveillance programs. He has been reported to be in Russia with the intention of seeking political asylum in a country that won't turn him over to the U.S. government.