Atomic bomb survivors from Japan and peace campaigners from around the world marched through the streets of New York on Sunday to push for the abolition of nuclear weapons on the eve of a U.N. nuclear disarmament and nonproliferation conference.

Around 7,500 people carrying banners and signs chanted "No nukes!" and "No more Hiroshima!" and other slogans as they walked about 3 km toward the United Nations, where the conference to review the Nuclear Non-Proliferation Treaty was to start Monday.

Although observers say it will not be easy for NPT members to produce a final document by consensus amid differences on the issues, aging atomic bomb survivors hope the discussions will bring nuclear weapons abolition within sight.