Salah Abdeslam, the prime suspect in November's Paris attacks, has told police he was supposed to blow himself up at the Stade de France but backed out at the last minute, The Guardian reported.
François Molins, the French public prosecutor, confirmed Abdeslam had been a key member of the commandos who carried out the series of bombings and shootings in the city on 13 November, but said the alleged confession should be treated with care and needed to be double checked.
Abdeslam was charged with terrorism offences in Belgium on Saturday after being arrested in a raid in the Brussels suburb of Molenbeek the day before.
Abdeslam will fight his extradition to France but was "collaborating" with Belgian investigators, his lawyer said on Saturday.
Molins said at a press conference in Paris on Saturday that Abdeslam's claim raised questions about why he was in the 18th arrondissement of Paris on the evening of the attacks, after dropping off three other jihadis at the football stadium. Islamic State later claimed responsibility for the attacks including a bombing in the 18th arrondissement, which never happened.