French police say two men said to be responsible for the killing of 12 people at a satirical magazine in Paris have been sighted in a town in northern France.
The Paris-based agency said on Thursday that the police have confirmed the two men were in the Aisne district in northern France.
Tensions in Paris were high on Thursday as France began a day of national mourning, after the controversial Charlie Hebdo magazine was attacked by three armed men on Wednesday. Twelve people were killed and 11 others were injured in the attack.
Al Jazeera's Barnaby Phillips reports from Paris.
