"Our country is committed to leading the worldwide community by encouraging both sides to make progress toward abolishing nuclear arms", Abe said in his speech at the annual ceremony at Hiroshima Peace Memorial Park near the ground zero, reported AFP.
During the final stage of the Second World War, the United States dropped nuclear bombs on the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945 respectively, killing 140,000 people. Japan is the only country to have suffered atomic attacks, in 1945.
For the first time in several years, Japan observed the Hiroshima Day on August 6, 2017 without the controversy on Yasukuni shrine visit by political leaders eclipsing the spirit for peace around the world.
Rahul Gandhi visits flood-hit people, distributes relief
Rahul was travelling with SPG commandos some of whom were reportedly injured in the attack as they were sitting in the back. The Congress leader was accompanied by other Congress leaders Sachin Pilot, Ashok Gehlot and party workers.
The anniversary comes amid growing concern in Japan over North Korea's recent missile tests, and mounting tension over its nuclear programme.
He referred to the Treaty on the Prohibition of Nuclear Weapons approved July 7 at a United Nations conference and said, "the governments of all countries must now strive to advance further toward a nuclear-weapon-free world".
Using last year's peace declaration as a reference point, Matsui repeated his description of nuclear weapons as "absolute evil".
India still talking to China, says MEA
We believe that the PLA has made sufficient preparation for military confrontation. Over the past month, the People's Liberation Army (PLA) has been on the move.
Since then, nuclear proliferation has created a unsafe modern world, with many nations now capable of using nuclear weapons on their neighbor.
"The states possessing nuclear weapons have a special responsibility to undertake concrete and irreversible steps in nuclear disarmament".
But many Americans believe they hastened the end to a bloody conflict and ultimately saved lives on both sides, thus justifying the bombings.
ASEAN ministers endorse framework code in South China Sea
But China, which claims virtually the entire South China Sea, is unlikely to allow the negotiations to move in that direction. Its sweeping claims overlap with those of ASEAN members Vietnam, the Philippines, Malaysia and Brunei, as well as Taiwan.