Toulouse prosecutor Pierre-Yves Couilleau told reporters that three students were injured on Friday when the motorist drove into the group, near a university campus in the city of Blagnac. One of them is said to be in a serious condition.
At least three people were injured after a auto rammed into passers-by in Blagnac commune near Toulouse, southwest France.
At least two are in critical condition.
French police clarified however, that the 28-year-old driver is not on a security watch-list and after an investigation the public prosecutor said there are no indications that the auto attack was an act of terrorism.
Unconfirmed reports say he suffered from major psychological problems.
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The fifth woman, who wished to remain anonymous, worked at The Chris Rock Show where C.K. was a writer and producer. The comedian's publicist, Lewis Kay, told the Times in an email, "Louis is not going to answer any questions".
The injured students were taken to a hospital in Toulouse.
A 23-year-old woman was the most seriously injured following the incident outside a college. La Dépêche du Midi newspaper quoted him as telling police he had heard voices telling him to harm someone. The man was arrested on the spot.
"The individual arrested immediately after the event said he had been planning this act for a month".
The collision happened outside Saint Exupéry high school, according to CNN affiliate BFM TV.