Three boys have been arrested for investigation of bullying red-haired students after a Facebook message promoted "Kick a Ginger Day" at a Southern California school.
Los Angeles County sheriff's spokesman Steve Whitmore said on Monday that two 12-year-olds were arrested for suspicion of misdemeanour battery, and a 13-year-old was booked for misdemeanour cyberbullying. They were released to their parents.
A total of eight boys are suspected in the November 20 attacks on seven students at A E Wright Middle School in Calabasas.
Authorities believe the shoves and kicks were prompted by a message referring to a South Park episode satirizing racial prejudice.
Nobody was seriously hurt.
A message left for the school superintendent was not immediately returned.