Whatwe know:

Details of terror atrocity

More details have emerged about the IS attack.

Seven people were detained in Belgium in connection with the attacks.

Two of the terrorists killed on Friday night were Frenchmen living in Brussels.

As many as three of the seven suicide bombers were French, as was at least one of the men arrested in Belgium.

Three Kalashnikov assault rifles were discovered inside a Seat car used in the attacks which was found in the suburb of Montreuil, four miles east of Paris.

One of the attackers was identified as 29year-old Frenchman Ismael Mostefai, who was flagged for links to Islamic radicalism

Mostefai’s father and brother have been arrested.

Prosecutors believe three teams of terrorists carried out the coordinated attacks.

At least one of the attackers is believed to have passed through Greece as a refugee.