Japan's leader Shigeru Ishiba and officials from across the world attended the annual ceremony in Hiroshima.

Groups around the world will gather this week to commemorate the Aug. 6th bombing of Hiroshima, a nuclear attack that killed 200,000 Japanese people 80 years ago.

Remembrances in Japan, the United States and elsewhere this week mark the only use of atomic weapons in military conflict and against civilian populations.