The survivors visited holy sites, including the Western Wall, on Monday, calling for the end of nuclear weapons, The Associated Press reported. They held signs in Japanese that read "Nuclear Abolition."
“Any use of the atom [bomb] should be forbidden, even for intimidation," AP quoted Hiroshima survivor Nagayama Iwao, 69, as saying.
The protest comes as tensions between Israel and Iran escalate over Iran’s development of nuclear weapons.
The United States dropped an atomic bomb on Hiroshima in 1945, leading to Japan’s World War II surrender. More than 100,000 people were killed in the bombing.