Police in France are hunting for any accomplices of the gunmen who killed 17 people in two days of terror attacks in Paris.
One key figure is Hayat Boumeddiene, the partner of Amedy Coulibaly.
Coulibaly was killed when police stormed a supermarket in Paris on Friday.
She was said to be with Coulibaly when a policewoman was killed and is described as "armed and dangerous".
Two other gunmen who carried out Wednesday's deadly attack on the satirical magazine Charlie Hebdo were also killed by police on Friday.
Francois Molins, the chief prosecutor in France, says authorities are now focusing on Boumeddiene.
"The investigation will focus on arresting Amedy Coulibaly's partner, whom we haven't arrested yet. The investigation will also have to determine any complicities they may have benefited from, the financing of these criminal activities, the origin of those weapons and any help they may have benefited from in France, abroad, or also in Yemen."
President Francois Hollande praised the police but also warned of further threats.
French officials meanwhile, have admitted there had been a "clear failing" in French intelligence.
Meanwhile, US Department of Defence spokesman John Kirby says this week's attacks in Paris are a "grim reminder" of the threat posed by extremist groups.
"This week's horrific attacks in Paris, I think is a grim reminder to all of us of how serious this threat is and how we have to continue to work closer together, the international community, as well as inter-agency here in the United States government, to combat this threat, and we are and we take it seriously."
US President Barack Obama said he has directed his intelligence agencies to help France deal with any further threats.
The US state department has updated its travel advisory warning Americans travelling abroad to maintain a high level of vigilance.
