The names of three of the Paris attackers appear in files leaked from the Islamic State militant group, according to German media reports.

US President Barack Obama has visited the scene of the Bataclan theatre attack in Paris, after arriving in the city for the UN climate change summit.

Antoine Leiris lost his wife Helene in the Bataclan theatre in Paris.His Facebook tribute to his wife and challenge to her killers has since been shared thousands of times.