French truck killer Mohamed Lahouaiej Bouhlel received logistical support preparing for his Bastille Day attack from five suspects who are now in custody, prosecutor Francois Molins said Thursday.

Molins said the four men and a women were "involved in the preparation" of the attack, which had been planned months in advance, and that one of the suspects had filmed the scene of the crime the day after, as it crawled with police and journalists.