The United States National Security Agency spied on French presidents Jacques Chirac, Nicolas Sarkozy and Francois Hollande, WikiLeaks said in a press statement published on Tuesday, citing top secret intelligence reports and technical documents.

The revelations were first reported in French daily Liberation and on news website Mediapart, which said the NSA spied on the presidents during a period of at least 2006 until May 2012, the month when Hollande took over from Sarkozy.

The US would not confirm the veracity of the documents, while Mr Hollande called a defence council meeting on the issue for Wednesday.