Thousands of activists marched past the United Nations on Sunday, hoping to remind diplomats reviewing the Nuclear Nonproliferation Treaty of the horrors of the bombs dropped on Hiroshima and Nagasaki five decades ago, AP reported. Chanting «No War, No Nukes» and carrying signs saying «No More Hiroshima, No more Nagasaki,» the marchers then headed to Central Park, where they formed a human peace symbol. Organizers put the number of protesters at 40,000. The mayor of Hiroshima, Tadatoshi Akiba, told the crowd that the survivors of the bombs were «the only people who have had the experience of nuclear war.» «For them the world is a family, and we need to work together so that no member of this family will have to suffer the pain that they suffered in 1945,» he said. --More 2346 Local Time 2046 GMT