Japan remains cautious about taking part in talks at the United Nations to draw up a legally binding treaty to ban nuclear weapons.
The negotiations will begin on March 27th in New York in line with a resolution adopted at the UN General Assembly in December.
Foreign Minister Fumio Kishida suggested willingness to participate, saying Japan should assert its stance towards "a world without nuclear weapons." But he said the decision will be made by the government.
Japan's ally, the United States said it will not participate in the meetings and other nuclear weapon states are likely to follow suit.
Officials also say the worsening security environment including recent North Korea nuclear and missile tests should be factored in as well.