“The person behind the assault was a member of the terror group,” Amaq, a news outlet affiliated to Daesh, said in a statement via its Telegram account on Saturday.
The statement added that the person carried out the operation in response to calls to target nationals of states that are part of the [US-led] coalition, allegedly fighting Daesh.
Meanwhile, police announced of several arrests made on Saturday and two on Friday, including the man’s estranged wife, Le Monde reported.
Mohamed Lahouaiej-Bouhlel the man suspected drove a lorry into crowds marking Bastille Day on the Promenade des Anglais on Thursday before he was shot dead by police.
French authorities said they were checking the claim.
France has declared three days of national mourning for the Bastille Day massacre, in which the lorry careered for hundreds of metres along the Promenade des Anglais seafront, slamming into families and friends after a firework display marking the anniversary of the 1789 revolutionary storming of the Bastille.
