The Duke of Cambridge has visited a school in west London to support of an anti-bullying campaign run by an organisation set up in memory of his mother.
The Diana Award's Anti-Bullying Ambassadors programme provides the opportunity to learn how to recognise signs of bullying and encourage victims to seek help and speak out about their concerns.
Prince William joined more than 50 young people at Hammersmith Academy as they took part in a training session focused on support networks, cyber-bullying and LGBT (lesbian, gay, bisexual, and transgender) bullying issues.
A recent Diana Award survey of 2,000 young people found that over a third worry about going back to school because of bullying, it also revealed:
35% of those questioned did not feel comfortable telling anyone about bullying
59% said bullying made them think about skipping school.
The organisation also promotes the use of the "high-five" to help young people to remember five people they can go to for help and advice.
William wrote down Catherine, Harry, father, grandmother, grandfather and an extra - his dog Lupo.
Tessy Ojo, the Diana Award's chief executive, said the organisation was "thrilled" to have the Duke's support.
She said: "These latest statistics highlight how vital it is to empower young people to speak out and seek support if they are experiencing bullying.
"Through our training, mentoring and development programmes we empower and motivate young people to create lifelong positive social changes in their communities."