A survivor of the 1945 atomic bombing of Hiroshima, as well as the current mayors of Hiroshima and Nagasaki, have appealed to the world that atomic bombs should never be used again.

The three men spoke Wednesday at the Preparatory Committee for the 2026 Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons. The meeting is being held in Vienna.

Eighty-one-year-old Ieshima Masashi was at his home in Hiroshima City when the atomic bomb exploded. He was 3.

He spoke about what he and his family experienced at the time. His mother sustained heavy injuries from window glass that was shattered by the bomb blast.

He said nuclear weapons and mankind can never coexist.

Ieshima was followed by Hiroshima Mayor Matsui Kazumi. He noted that Russia has repeatedly threatened to use its nuclear weapons, and many policymakers are showing their approval of the expansion of nuclear deterrence.

Matsui said the situation runs counter to the wishes for peace that atomic-bombed cities have long been appealing for.

He called on participating countries to use the ongoing meeting to take a major step forward toward concrete measures for nuclear disarmament and non-proliferation.

Nagasaki City Mayor Suzuki Shiro called on representatives to visit Hiroshima and Nagasaki.

He said knowing the realities of atomic bombings is the first step in realizing a world without nuclear weapons and a driving force to change the world.

Suzuki suggested he wants to work with people across the world to make Nagasaki the last place to suffer an atomic bombing.