The two brothers who killed 12 people last week in a shooting attack on the French satirical magazine Charlie Hebdo have been buried, more than a week after the massacre.

Cherif Kouachi was buried late Saturday night in the northwestern Paris suburb of Gennevilliers, without any mourners in attendance – including his wife.

Mayor Patrice Leclerc said he had no choice but to allow Kouachi's burial, but asked that his grave be unmarked to prevent the burial place from becoming a "place of pilgrimage."

Kouachi's brother Said was buried Friday night in Reims, also in an unmarked grave.

The two brothers led police on a three-day manhunt before being cornered at a printing house near Charles de Gaulle Airport.

On Friday, French police arrested a dozen people suspected of assisting the Kouachi brothers.

The arrests made in the region south of Paris including Montrouge, where a young policewoman was killed in the attacks, were in connection with suspected "logistical support" for the shootings, an official said.