A vigil was held overnight at the Ozar Hatorah Jewish school in Toulouse where three children and a Rabbi were shot dead.
Southwest France is on highest terror alert. The massive police manhunt is focusing on far right extremists; including three former soldiers.
Toulouse has a large Jewish and Muslim population.
Police have said the same gun was used in all three of the recent attacks in the area.
The brother of gunman Mohamed Merah is being held by French police, following the discovery of explosives in his car.
It seemed to have been a text-book operation - but now it looks like a catalogue of mistakes
Mohamed Merah, the gunman who killed seven people in Toulouse has been shot dead by police after a 32-hour siege.