Teacher fatally stabbed in school attack in France
STORY: A terrifying ordeal for pupils and staff at this school in the northern French city of Arras.
This footage shows several people trying to stop an alleged attacker, one using a chair.
Before falling to the ground and being repeatedly struck.
Before police could intervene, a teacher was fatally stabbed and two other people wounded.
"We're all in a state of shock," said philosophy teacher Martin Doussau.
He says he was chased down by the attacker but managed to escape unharmed after locking himself in a room.
The regional Pas-de-Calais authority said the suspected assailant was arrested.
The investigation was handed to the anti-terrorism prosecutor's office.
One of his brothers was also detained nearby. Local people were told to avoid Arras city center.
The suspect was a former student of the Lycee Gambetta high school where the attack happened and was on a state watchlist of known people to be a possible security risk. That's according to a police source.
He was described by some as a Russian-born Chechen and by others as a Russian-born Ingush.
Police could not confirm local media reports that Friday's attacker shouted "Allahu Akbar."
BFM TV reported he was about 20 years old, and that he had been in France since 2008.
The La Voix du Nord regional newspaper reported the teacher was killed trying to stop the attacker from inflicting harm.
