A man wanted over the Paris terror attacks was questioned and released by police just hours after the massacre, four French officials told the AP news agency.
Police reportedly questioned Saleh Abdeslam when they pulled over a car near the Belgian border.
They checked his ID and let him go.
Authorities had already identified him as the renter of a Volkswagen Polo that was abandoned at the scene of the attack.
He was one of three people in a car stopped by police Saturday morning, hours after the attacks that left at least 129 dead, the officials told AP.
Three French police officials and a top French security official all confirmed to AP that officers stopped Abdeslam and checked his ID and then let him go.
Abdeslam is now the focus of an international manhunt.
One of his brothers, Ibrahim Abdeslam, was reportedly one of the suicide bombers in the attacks.
A third brother was arrested in Belgium and has allegedly been questioned before being released.
BREAKING: 4 French officials tell AP police questioned, freed fugitive suspect hours after Paris attacks
Samy Amimour, who was born in Drancy, a north-eastern suburb of Paris, is believed to be the first Paris attacker to be buried.
One of the cafes struck in the Paris terror attacks reopens as the city tries to move on in wake of the tragedy which claimed 130 lives.
Investigating judge in Belgium charges man with murder and participation in the activities of a terrorist organisation: reports