France has mobilised 115,000 security personnel in the wake of Friday's Paris attacks by Islamist militants, Interior Minister Bernard Cazeneuve has said.
Mr Cazeneuve said 128 more raids on suspected militants were carried out. French air strikes also hit Islamic State in Syria overnight.
IS has said it carried out the attacks on bars, restaurants, a concert hall and a stadium in which 129 people died.
A huge manhunt is under way for one of the suspects, Salah Abdeslam.
He is believed to have fled across the border to his native Belgium. Belgian police have released more pictures of the wanted man.