Children were among six people injured yesterday in a knife attack in Annecy, in southeast France, triggering a wave of panic in the small alpine town.
Four children aged 22 months to three years were wounded.
The victims remain in hospital.
A Syrian asylum-seeker is suspected of carrying out the attack, but his motive is unclear.
He was detained by the police.
The authorities say he lived in Sweden for 10 years and had applied for asylum status in France, but his request had been rejected.