i'm keikoicate ga kitagawa in . people from around the world will remember the city's darkest day. 68 years ago the u.s. military dropped an atomic there three days after hiroshima. the mayor of nagasaki is urging the japanese government to do more to rid the world of nuclear weapons. survivors and relatives arrived near ground zero to offer prayers. >> translator: an atomic bombing should never happen again. i hope there will be no more victims. >> the memorial ceremony will begin at 10:35 a.m. japan prime minister abe will attend. the park will fall silent the moment the bomb was dropped. nagasaki mayor is scheduled to read a peace declaration and expected to criticize the abe administration for refusing to sign a statement by the nuclear nonproliferation treaty. the statement called for nuclear weapons never to be used under any circumstances. that wording conflicts with the national security policy which places the country under the so-called nuclear umbrella. we will have live coverage from nagasaki. we will ta