POLICE in Paris are racing to identify the attackers in a bid to round up any accomplices who may still be at large.

Prosecutors believe three teams of terrorists carried out coordinated attacks. Seven men, all wearing identical explosives belts, died.

Le Monde reported that the first terrorist to be identified was 29-year-old Omar Ismael Mostefai, who lived in Chatres, south west of Paris.

On Saturday Police took Mostefai's father and brother into custody and forensics experts began a painstaking search of his house.

Raids also took place at the homes of friends and relatives.

He was born in the working-class Parisian area of Courcouronnes on November 21, 1985. Police identified him from a severed finger found outside the Bataclan concert hall.

Mostefai's family lives in the small town of Romilly-sur-Seine, approximately 80 miles east of Paris.

Mostefai's brother lives to the south of the city in the Essonne region.

It is understood he gave himself up to police voluntarily. He is said to be estranged from his younger brother and the pair have not spoken for several years.

In an interview with French radio he said: "I was in Paris and I saw how this sh*t went down."

Paris prosecutor Francois Molins s said Mostefai was on a list of known radicals but had never been "implicated in an investigation or a terrorist association". Between 2004 and 2010 he was convicted of several petty crimes but spent no time in jail.

However, he is believed to have travelled to Syria in 2013 where he may have met up with Isis radicals who trained him for a suicide mission.

There were reports that one of the attackers may have been a refugee who entered Europe via Greece. A passport found near one of the sites identified the attacker as Ahmed Almuhamed, an asylum-seeker said to have been traveling with another man, Mohammed Almuhamed. However, prosecutors cautioned against jumping to conclusions. They said the passport could have changed hands several times since Almuhamed entered Europe.

Salah Abdeslam, a 26-year-old Frenchman born in Brussels, is one of three brothers believed to be involved in the killings in central Paris.

He is said to have rented a black Volkswagen Polo used by the attackers who targeted the Bataclan concert hall.