A 17-year-old Bangladeshi boy has won this year's International Children's Peace Prize for his work to fight cyberbullying in his country.The prize winner, Sadat Rahman, promised to keep fighting online abuse until it no longer exists."The fight against cyberbullying is like a war, and in this war I am a warrior," Sadat Rahman said during a ceremony on November 13 in The Hague, the Netherlands.He added, "If everybody keeps supporting me, then together we will win this battle against cyberbullying."Rahman developed a mobile phone application that provides education about online bullying and a way to report cases of it.He said he began his work on the project after hearing the story of a 15-year-old girl who took her own life as a result of cyberbullying."I will not stop until we receive no more cases through the app," Rahman said at the ceremony.The award comes with a fund of over $118,000, which is invested by the KidsRights Foundation.The group chooses projects to support causes that are closely linked to the winner's work.