Moon said he has also delivered the Japanese leader's message to the North Korean leader.

Abe thanked the South Korean president for raising the issue of Japanese citizens kidnapped by the North in the latter's meeting with Kim.

"Also, I offer my respect to the leadership the president showed for the last South-North Korea summit," he told Moon through his interpreter.

Abe was one of the first global leaders, after US President Donald Trump, to be personally briefed by Moon on the outcome of his third and latest summit with the reclusive North Korean leader.

Moon and Kim first met in the joint security area of Panmunjom inside the heavily fortified Demilitarized Zone on April 27, then again on May 26.

In the latest inter-Korean summit, the divided Koreas signed a new military agreement that Moon and other South Korean officials called a de facto non-aggression pact, under which the Koreas agreed never to use military force against each other under any circumstances.

Moon and Abe also discussed ways to improve their countries' own bilateral ties, often soured by their shared history.

Abe urged Moon to honor the countries' agreement signed late 2015, under which Seoul's former Park Geun-hye administration agreed to for once and for all settle the issue of Korean women forced into sexual slavery by Japan's imperial military in the early 20th century in exchange for 1 billion yen ($8.87 million).

Moon said his government will neither scrap nor demand renegotiation of the agreement, but that it cannot condone a controversial deal opposed by most of his people, including the victims themselves, Moon's spokesman Kim Eui-kyeom told a press briefing.

The Moon Jae-in government put the 1 billion yen in escrow in May when the president declared the 2015 agreement seriously flawed.

Tuesday's meeting between Moon and Abe marked the first of its kind since May when the South Korean president visited Tokyo for a three-day regional summit that also involved Chinese Premier Li Keqiang.

Moon will head home Wednesday after addressing the United Nations General Assembly, laying out the details of his recent talks with the North Korean leader for the rest of the world.

He is also scheduled to hold bilateral summits with the leaders of Egypt and Chile before wrapping up his four-day visit here. (Yonhap)