The Japanese government on Wednesday expressed its hope that a joint declaration issued after the latest inter-Korea summit will lead to the "complete" denuclearization of North Korea.

"What's most important is that the agreements reached in the U.S.-North Korea summit, including the North's commitment to its complete denuclearization, will be implemented in a complete and swift manner," Chief Cabinet Secretary Yoshihide Suga said at a press conference.

The top Japanese government spokesman also said after South Korean President Moon Jae In and North Korean leader Kim Jong Un held a two-day summit through Wednesday in Pyongyang that Tokyo will continue to closely coordinate its policy on North Korea with Washington and Seoul.

The summit was held amid stalled nuclear negotiations between the United States and the North following a historic summit between the two countries' leaders in Singapore in June.

(Photo courtesy of Korean Media)

During the talks with Moon, the North Korean leader vowed to permanently dismantle his country's major nuclear complex if the United States takes reciprocal actions.

Kim also agreed to abolish North Korea's key missile facilities in the presence of foreign experts and visit Seoul in the near future, according to the joint declaration.

Japanese Prime Minister Shinzo Abe has expressed his readiness to meet with Kim in an attempt to achieve a breakthrough in the long-standing issue of past abductions of Japanese nationals by the North.

Asked whether Japan has confirmed that Moon urged Kim to hold a Japan-North Korea summit as reported, Suga said only that Tokyo "has received various information" from Seoul.

Following the agreement reached by the leaders of the two Koreas, some survivors of the atomic bombings of Hiroshima and Nagasaki expressed hope for the denuclearization of the Korean Peninsula.

"It is a major advancement toward denuclearization," said Toshiyuki Mimaki, the 76-year-old vice chairman of the Hiroshima Prefectural Confederation of A-Bomb Sufferers Organizations, referring to Kim's pledge to permanently close the key missile facilities in Tongchang-ri.

Regarding Kim's promise to dismantle the country's major nuclear complex in Yongbyon in exchange for U.S. actions, Koichi Kawano, 78, chairman of the A-bomb victims liaison council at Nagasaki Prefecture's peace movement center, said he believes there was "considerable progress" in the latest inter-Korea summit.

"We would like to keep a close eye on how President Trump will react," Kawano said.