Izumi Nakamitsu, the new U.N. undersecretary-general and high representative for disarmament affairs, has said that she will throw her full support behind negotiations to ban nuclear weapons.

In an interview Thursday, Nakamitsu, 53, said she will pay official visits to Hiroshima and Nagasaki this summer, if invited, with the aim of making an international appeal for disarmament from the atom-bombed cities.

Nakamitsu, who assumed the new posts Monday, gave her blessing to the view held by nonnuclear countries in favor of an international treaty to outlaw atomic weapons that a disarmament accord would complement the regime of the Nuclear Non-Proliferation Treaty.