PARIS — French police investigating a knife attack that left two young women dead in the southern port of Marseille said they detained four people Tuesday.
A judicial official said the four were in custody on suspicion of association with a terrorist group. Several places were being searched in the probe.
The official, who spoke on condition of anonymity under internal rules, wouldn’t give more details.
Interior Minister Gerard Collomb said on France-Inter radio Tuesday that the assailant in Sunday’s attack had Italian residency and a valid Tunisian passport. The attacker was killed by soldiers after the stabbings, which were claimed by the Islamic State group.
One of the seven IDs the attacker used in previous encounters with French police was a Tunisian passport identifying him as Ahmed H. A judicial official said Tuesday that authorities have determined that is the Marseille attacker’s true identity.
Rome prosecutors opened a terrorism investigation into the suspect, identified in the Italian media as Ahmed Hanachi. He had lived in Aprilia, south of Rome, from about 2006 to 2014, Italian news agency ANSA said.