Hollande, Obama to discuss spy claims

French President Francois Hollande will speak with US President Barack Obama "in the coming hours" to discuss reports that the US spied on him and two predecessors, parliamentarians say.

"Talks with the president of the United States are planned in the coming hours," said former prime minister Jean-Pierre Raffarin, part of a group of parliamentarians who met with Hollande to discuss the latest revelations from Wikileaks.

Hollande told the delegation that "France does not allow this practice of targeting foreign leaders," said another member of the group.

France has summoned the US ambassador to discuss the claims, which Hollande's office called "unacceptable".

Diplomatic sources told AFP that US Ambassador Jane Hartley had been summoned for a meeting on Wednesday afternoon to discuss the documents published by Wikileaks.

The documents - labelled "Top Secret" and appearing to reveal spying on Jacques Chirac, Nicolas Sarkozy and Hollande from 2006 to 2012 - were published by WikiLeaks in partnership with French newspaper Liberation and the Mediapart website.

It also revealed that Hollande approved secret meetings on the consequences of a Greek exit from the eurozone as early as 2012.

Hollande's office described the actions of the US National Security Agency as "unacceptable".

They have "already led to discussions between the United States and France, notably in 2013 at the time of the first revelations," an Elysee Palace statement said, referring to leaked documents that showed the US had spied on German Chancellor Angela Merkel.

The issue was again discussed when Hollande visited the White House in February 2014, the statement added.

"France, which has once again reinforced its control and protection measures, will not tolerate any act that threatens its security and the protection of its interests."

The White House did not comment on past activity, but said it was not targeting Hollande's communications and will not do so in the future.