U.S. Secretary of State Mike Pompeo on Sunday played down an exchange of contentious remarks with North Korea on the sidelines of weekend regional meetings in Singapore, saying Pyongyang had made clear its continued commitment to denuclearize.

Both Pompeo and North Korean Foreign Minster Ri Yong Ho were in Singapore, less than two months after an unprecedented summit between U.S. President Donald Trump and North Korean leader Kim Jong Un that Trump has hailed as a success despite a lack of concrete action by Pyongyang to abandon its nuclear weapons program.

Pompeo and Ri's interaction nevertheless appeared limited to a brief handshake at the ASEAN Regional Forum. When Pompeo left the meeting on Saturday, Ri delivered an address in which he said Pyongyang was alarmed by U.S. intentions. He also complained about U.S. calls to maintain sanctions on North Korea and reluctance to declare a formal end to the Korean War.