At their joint news conference, Abe said it was significant that the two countries agree on the North Korean issue. Under the agreement, Japan apologized and paid 1 billion yen ($8.9 million) to a Korea-run foundation to support the victims in return for Seoul's promise not to raise the issue again in global forums.
"We can by no means accept South Korea's unilateral request for additional measures". Japan's Chief Cabinet Secretary Yoshihide Suga said his participation in the games would depend on his parliamentary schedule.
A panel the size of a laptop computer fell off one of the Japanese prime minister's jumbo jets, the defence force said on Friday, a potentially embarrassing mishap amid concern over the dangers posed by parts falling off U.S. military aircraft based in Japan.
The highly emotive issue has poured cold water over improving bilateral ties between Tokyo and Seoul, as the two U.S. allies seek closer cooperation on regional security threats such as North Korea.
The South Korean side also believes that prior to the deal being made with Japan, those who served as "comfort women" were not sufficiently consulted and their feelings not fully taken into account at the time. Following Moon's remarks, the Japanese government reportedly filed a formal protest with the South Korean Embassy in Tokyo.
INTERNATIONAL RELATIONS PROFESSOR KIM JAE CHUN of Sogang University, on the difference in opinion over the comfort women deal. Tokyo says it should not be strong-armed into a form of "apology diplomacy".
Japan and South Korea share a bitter history that includes Japan's 1910-45 colonization of the peninsula and the "comfort women" issue is especially touchy.
Tokyo has reacted angrily to comments on the issue this week by Seoul.
But he said Wednesday: "The fact that there was an official agreement between Korea and Japan can not be denied".
Despite a recent cooling of tensions in the run-up to the Winter Olympics in South Korea, Shinzo Abe has insisted on "maximising pressure" on Pyongyang over its nuclear and missile programmes.