South Korean President Moon Jae-in will seek to hold another summit with North Korean leader Kim Jong Un at an early date as part of diplomatic efforts to convince the North to abandon its nuclear weapons program, Moon’s national security adviser said on Thursday.

Moon and U.S. President Donald Trump agreed in talks in Washington that a top-down approach led by leaders is essential to facilitate further progress in nuclear talks, Chung Eui-yong, the South Korean national security adviser, told reporters.