The head of U.N. negotiations aimed at banning nuclear weapons released a first draft of a treaty on Monday that includes references to the suffering of victims of the atomic bombings of Hiroshima and Nagasaki.

Costa Rica's ambassador to the United Nations, Elayne Whyte Gomez, released the draft ahead of the second round of U.N. talks to be held from June 15 through July 7 in New York.

The preamble of the text says the countries participating in the talks are "mindful of the suffering of the victims of the use of nuclear weapons (hibakusha) as well as of those affected by the testing of nuclear weapons."