South Yorkshire Police said Friday the force had been alerted to last week's assaults at Wingfield Academy in the town of Rotherham, about 160 miles north of London.
It said a small number of pupils had sustained minor injuries after being attacked by fellow students. No arrests were made, but police said they had given some of the students involved a talking to, while the school said it condemned the attacks.
The issue of bullying of red-haired children periodically arises in Britain, and some commentators have attributed the phenomenon to lingering anti-Celtic prejudice.
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