Prosecutor Francois Molins said five suspects currently in custody are facing preliminary terrorism charges for their alleged roles in helping 31-year-old Mohamed Lahouaiej Bouhlel in the July 14 attack in the southern French city.
Molins' office, which oversees terrorism investigations, opened a judicial inquiry today into a battery of charges for the suspects, including complicity to murder and possessing weapons tied to a terrorist enterprise.
The suspects are four men, two Franco-Tunisians, a Tunisian and an Albanian, and one woman of dual French-Albanian nationality, Molins said.
People close to Bouhlel said he had shown no signs of radicalisation until very recently. But Molins said information from Bouhlel's phone showed searches and photos that suggested he could have been preparing an attack as far back as 2015.
Also Read
The Islamic State group has claimed responsibility for the attack, though authorities have said they had not found signs that the extremist group directed it.
Earlier today, French officials defended the government's security measures in Nice on the night of the Bastille Day attack, even as the interior minister acknowledged that national police were not, as he had claimed before, stationed at the entrance to closed-off boulevard during the attack.
Cazeneuve said today that only local police, who are more lightly armed, were guarding the entrance to the Promenade des Anglais when Bouhlel drove a 19-metric ton truck onto the sidewalk in Nice before mowing down pedestrians who had gathered to watch a holiday fireworks show.
Cazeneuve then launched an internal police investigation Thursday into the handling of the Nice attack. President Francois Hollande said the conclusions of that investigation will be known next week. He said any police "shortcomings" will be carefully addressed but defended French authorities' actions.