South Korea's president is in Japan for talks that are expected to focus on North Korea's nuclear program, China and improving trade. But so far, the visit has been dominated by the issue of sexual slavery.

South Korean President Lee Myung-bak arrived in Osaka Saturday and met with Japanese Prime Minister Yoshihiko Noda during an informal dinner.

There have been growing calls in South Korea for Japan to compensate the families of South Korean women forced to work in brothels as so-called “comfort women” for Japanese troops during World War Two.

Earlier this week, South Koreans erected a statue in front of the Japanese embassy in Seoul to commemorate the slaves.

Mr. Lee was expected to raise the issue with Mr. Noda. Japan's Kyodo news agency quoted him as saying the issue ''can be resolved anytime if Japan will show more sincerity.''

The two leaders are scheduled to meet again on Sunday.