Lanterns float down the Motoyasu river beside the Atomic Bomb Dome in honour of the victims of the atomic bombing of Hiroshima.
Japan vowed never to seek atomic weapons and urged nuclear powers to give up their own arsenals 62 years after the world's first nuclear attack on Hiroshima.
Some 45,000 people recited silent prayers this year at 8:15 am, the exact moment in 1945.
Photograph: Toshifumi Kitamura/AFP/Getty Images
Earlier feature: A letter from Gandhiji