The teacher who was beheaded in a street in France had received threats after showing controversial cartoons of the Prophet Muhammad to his pupils, French media report.
Nine people have been arrested, including the parents of a child at the school where the teacher was working, judicial sources are quoted as saying.
The attacker was shot dead by police near the scene of Friday’s killing.
Police say the attacker was an 18-year-old man of Chechen origin.