Residents of Hiroshima called for a future without nuclear weapons as they commemorated the 67th anniversary of the bombings that destroyed most of their city.
The Associated Press reports that 50,000 people gathered for a ceremony in Hiroshima's peace park near the epicenter of the 1945 attack.
Hiroshima Mayor Kazumi Matsui said Japan needed to take a firmer stand against global nuclear armament.
“I firmly believe that the demand for freedom from nuclear weapons will soon spread out from Hiroshima, encircle the globe, and lead us to genuine world peace," he said.
Mayor Matsui said Japan needed to look toward safe and secure energy sources after last year's nuclear accident at Fukushima highlighted safety concerns with nuclear power.
Agence France Press is reporting that 700 people, including survivors of the atomic bomb and evacuees from the Fukushima nuclear disaster, staged a rally against nuclear power.
An earthquake and tsunami off the coast of Japan left 19,000 dead or missing in the town surrounding the Fukushima Daiichi plant on March 11, 2011.
Anti-nuclear sentiment has been building in Japan since Prime Minister Yoshihiko Noda in June ordered the restart of two reactors at Fukushima.
"We want to work together with people in Fukushima and join our voices calling for no more nuclear victims," said Toshiyuki Mimaki, 70, a survivor of the Hiroshima atomic bomb, told AFP.
Up to 140,000 people died when the United States dropped an atomic bomb on Hiroshima on August 6, 1945, during the last phases of WWII. A second bomb fell on Nagasaki on August 9th, killing 70,000 more.
Clifton Truman Daniel, a grandson of former President Harry Truman, visited Hiroshima this week to lay a wreath in Hiroshima Peace Memorial Park. Former President Truman ordered the bombs be dropped on Hiroshima and Nagasaki during WWII.
Truman earlier told Agence France Presse that he feels terrible for the lives lost in Hiroshima but he is often thanked by American veterans who credit the bombings with ending the war early. “I can't second-guess my grandfather," he said. "He always said that he made that decision to end the war quickly. That's what he believed."