North Korea has said it is still willing to talk “at any time in any form” after US President Donald Trump abruptly cancelled his meeting with Kim Jong-un.
Vice-foreign minister Kim Kye-gwan said Mr Trump’s decision was “extremely regrettable”.
President Trump blamed the North’s “open hostility” for the cancellation.
The summit would have been the first time a sitting US president had met a North Korean leader.
The details of the meeting in Singapore on 12 June were unclear. But talks would have focused on ways of denuclearising the Korean peninsula and reducing tensions.
Just hours before Mr Trump’s announcement, North Korea said it carried out its promise to dismantle tunnels at its only nuclear test site.