South Korean President Moon Jae-in on Wednesday floated the possibility of a three-way summit involving the two Koreas and the United States in the wake of an North-South summit scheduled for next month and a possible meeting of U.S. President Donald Trump and North Korean leader Kim Jong Un before the end of May.

"Holding a North Korea-U.S. summit following a South-North Korea summit itself is a historical event. And depending on their outcomes, they may lead to a three-way summit of South, North and U.S.," Moon as was quoted as saying after a preparatory meeting for the inter-Korean summit at the presidential Blue House in Seoul.

"We must completely resolve the issues of denuclearizing the Korean Peninsula and establishing peace through these upcoming talks and others that will follow," he added.