LIMA - Leaders of the United States, Japan and South Korea called Saturday for North Korea to draft a document showing how it will carry out a slow-moving denuclearisation deal, a Japanese official said.

US President George W. Bush, Japanese Prime Minister Taro Aso and South Korean President Lee Myung-Bak held a three-way summit in Peru on the sidelines of an Asia-Pacific meeting.

"The three leaders agreed that the North Korean nuclear issue is our common topic that requires close cooperation," said a Japanese government official who attended the meeting.

"The three leaders agreed on the need for a document on the framework for practical verification" of North Korea's denuclearisation, the official said on customary condition of anonymity.

- AFP /ls