After speaking in French in the video, Coulibaly continues in broken Arabic, stumbling over words he can't pronounce that he seems to be reading from a paper. He mangles grammar as he gives his allegiance to the head of the Islamic State. He repeats a pact that other loyalists have used to pledge their fealty to the militant group and then calls for others to carry out similar attacks.

The video appears to have been filmed over several days. Coulibaly is wearing different clothing in different shots. Someone added text afterward detailing the bloody outcome. At one point, he says Charlie Hebdo will be attacked "tomorrow" and that he and the brothers _ longtime acquaintances, according to judicial documents obtained by The Associated Press _ were coordinating.

All three men were killed in nearly simultaneous raids by security forces.

Five people detained in connection with the three days of bloodshed in France were released from custody, the Paris prosecutor's spokeswoman said earlier Sunday. Family members of the attackers have been given preliminary charges, but prosecutor's spokeswoman Agnes Thibault-Lecuivre said no one remained in detention Sunday over the attacks that left 17 people dead.

Coulibaly's widow, who has been named as an accomplice, is believed to have traveled to a Turkish city near the Syrian border and then all traces of her were lost, according to a Turkish intelligence official, who was not authorized to speak on the record.

Brothers Said and Cherif Kouachi methodically massacred 12 people at the Charlie Hebdo offices, led police on a chase for two days and were then cornered Friday at a printing house near Charles de Gaulle Airport. Separately, Coulibaly shot a policewoman to death and attacked the Paris kosher market, threatening more violence unless police let the Kouachis go. Four hostages died.

In Germany, arsonists early Sunday attacked a newspaper that republished Charlie Hebdo's cartoons. Two men were detained. No one was hurt in the fire, but the newspaper Hamburger Morgenpost said several files in its archives were destroyed.