The three people hurt are Chinese students ages 22 and 23, police officials said.
At least three people were injured Friday when a speeding auto deliberately slammed into a crowd outside of a school in Toulouse, southwest France.
The prosecutor says the driver was known to police for about 10 minor crimes and not listed on a French register of people suspected of being radicalized by extremists.
The man was arrested immediately.
A driver was arrested after the collision, and the Toulouse prosecutor has been called to investigate, the ministry said.
According to reports the driver has a history of mental illness including acute schizophrenia.
Two men aged 22 and 23, and a 23-year woman who was in a more serious condition, were hit on a pedestrian crossing outside IGS College just before 4pm local time (3pm United Kingdom time), the reports said. They have been admitted to hospital in the city.
The incident occurred outside a college in the suburb of Blagnac, According to local police it a "deliberate" act of violence meant to cause injury.
"The school management did not explain what was going on".