David Ford said: “These images are shocking and this story brings home to all of us the fact that such incidents are taking place on our doorstep and must be tackled urgently.
“Bullying is a major problem in schools across the country. Technology like camera phones and the internet has underlined this problem and has probably exacerbated it.
“Some children unfortunately take great pleasure in recording attacks on others and showing the footage to people. This is an extremely disturbing trend and school teachers and parents alike must be vigilant to protect our children against such attacks.”