Updated

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 Monday that two 12-year-olds were arrested for suspicion of misdemeanor battery, and a 13-year-old was booked for misdemeanor cyberbullying. They were released to their parents.

A total of eight boys are suspected in the Nov. 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.