France and the International Criminal Court have filed formal requests with Mauritania to extradite Libya's ex-spy chief Abdullah Senussi, a security source said on Sunday as Tripoli insisted that it should put him on trial.

"For the time being two requests have been received by Mauritania. One from France arrived on Saturday and the second from the ICC on Sunday," the Mauritanian source said.

A delegation from the Libya's ruling National Transitional Council is expected to visit Mauritania soon to discuss Senussi's handover.