WikiLeaks has published documents it says shows the U.S. National Security Agency eavesdropped on the last three French presidents.

There has been no immediate confirmation of the accuracy of the documents – which were released by the French daily newspaper Liberation and the investigative website Mediapart late today.

A spokesman for WikiLeaks, Kristinn Hrafnsson said he was confident the documents were authentic – and noted that previous mass disclosures from  WikiLeaks have proven to be accurate.

There was no immediate comment from the White House or the offices of French President Francois Hollande or his predecessors, Nicolas Sarkozy and Jacques Chirac – who were reportedly targeted by the eavesdropping.