Paris: One of the attackers who killed 129 people in Paris has been identified by French investigators. French citizen Omar Ismail Mostefai was named by local media and a French parliamentarian.
The 29-year-old had a criminal record and was known to have been radicalised.
Investigators identified him after his severed fingertip was found at the Bataclan concert hall, where three attackers blew themselves up, AFP news agency reports.
Friday’s attacks, claimed by Islamic State (IS) militants, hit a concert hall, a major stadium, restaurants and bars in the French capital.
Prosecutors say seven assailants – armed with Kalashnikovs and suicide belts – were organised into three teams, and there are fears that some may have fled the scene.
Prime Minister Manuel Valls has said France will continue with air strikes against IS in Syria, and described the group as a very well-organised enemy.
Police are trying to find out whether Mostefai travelled to Syria in 2014, judicial sources told AFP.
His father and brother have been taken into police custody.
“It’s crazy, insane. I was in Paris myself last night, I saw what a mess it was,” Mostefai’s older brother told AFP before being detained after voluntarily attending a police station on Saturday.
Mostefai came from the town of Courcouronnes, 25km (15 miles) south of Paris. He lived in the nearby town of Chartres until 2012, according to the local MP and deputy mayor Jean-Pierre Gorges.
He regularly attended the mosque in Luce, close to Chartres, AFP reported.
He had a history of petty crime but was never jailed. The security services deemed him to have been radicalised in 2010 but he was never implicated in a counter-terrorism investigation.
Mostefai’s brother said he had not had contact with him for several years following family disputes, but said he was surprised to hear he had been radicalised.
He was one of six children in the family and had travelled to Algeria with his family and young daughter, the brother said.