President Yoon Suk-yeol answers reporters' questions while arriving for work at the presidential office in Seoul, Nov. 10. Yonhap

President Yoon Suk-yeol said Thursday he will hold a trilateral summit with U.S. President Joe Biden and Japanese Prime Minister Fumio Kishida on the sidelines of upcoming regional gatherings in Southeast Asia.

Yoon made the remark to reporters a day before he leaves for Cambodia and Indonesia to attend summits involving the Association of Southeast Asian Nations and the Group of 20. (Yonhap)