South Korean President Lee Myung bak asked the United Nations chief to help improve strained relations with North Korea, Lee's spokesman said on Saturday.
Tensions on the divided Korean Peninsula have been high since Lee took office early last year with a pledge to get tough with Pyongyang. North Korea suspended reconciliation talks and some landmark joint projects with the South in protest, plunging their relations to lowest level in a decade.
In a telephone conversation with Lee, UN Secretary General Ban Ki moon said that he would closely cooperate with South Korea to try to improve inter Korean relations, Lee's spokesman Lee Dong kwan said.
Ban, a former South Korean foreign minister, did not give any further details.
Lee said on Friday he was ready for dialogue with North Korea to mend frayed ties but did not propose any new initiatives.