'Shock and dismay' over bugging claims
30 June 2013 Last updated at 13:40 BST
The head of the European Parliament has demanded "full clarification" from the US over a report that key EU premises in America have been bugged.
Martin Schulz said that if this was true, it would have a "severe impact" on ties between the EU and the US.
The report, carried by Germany's Der Spiegel magazine, cites a secret 2010 document alleging that the US spied on EU offices in New York and Washington.
Fugitive ex-CIA analyst Edward Snowden leaked the paper, Der Spiegel says.
The BBC's Stephen Evans said the document is alleged to "reveal pretty wild spread spying on EU affairs".