HIROSHIMA, Japan - Leaders of the Group of Seven rich nations will express their "commitment to achieving a world without nuclear weapons with undiminished security of all, through taking a realistic, pragmatic, and responsible approach", a draft communique seen by Reuters showed.

The leaders began a three-day summit in the Japanese city of Hiroshima on Friday. The final version of the communique is expected to be released on Sunday.

(Reporting by John Irish; Editing by Alex Richardson)