HIROSHIMA — Nuclear arms reduction plans crafted this week by an international panel in Hiroshima will take too long to bring about a world free of such weapons, atomic bomb survivors and antinuclear nongovernmental organizations said.

The International Commission on Nuclear Nonproliferation and Disarmament agreed on the action plans after a three-day meeting in Hiroshima to discuss recommendations to world leaders on concrete steps for nuclear arms reduction.

A report compiled by the commission contains a three-phase action agenda for the short, medium and long terms covering the periods to 2012, 2025 and beyond to reduce nuclear weapons in the world to zero.