This would be the first trip of a sitting US president to the city that had an atomic bomb dropped on it by the US Air Force during the World War II.
Obama is expected to call for "a world without nuclear weapons," the Tokyo-based business journal Nikkei Asian Review reported. He will be careful not to appear "apologetic," which would raise anger at home, the outlet added.
A summit of G7 nations – the United States, Canada, France, Germany, Britain, Italy, and Japan – will be held in the Kashiko Island. Obama’s trip to Hiroshima is likely to take place on the last day of the meeting on May 27, according to Nikkei's US sources.
Last August, Japan marked the 70th anniversary of the bombings. On August 6, 1945 a US B-29 bomber dropped a nuclear bomb on Hiroshima, killing about 140,000 people. A second strike three days later killed 70,000 people in the city of Nagasaki, causing Japan to surrender.