North Korean media have reported that leader Kim Jong Un has made first public appearance in weeks, ending rumours about his health.
Various speculative reports in recent days had claimed the dictator was either dead, or in a "vegetative state" following surgery.
On Sunday, Foreign Secretary Dominic Raab told the BBC's Andrew Marr programme he had seen the reports about the North Korean leader, but "did not know" if they were true.
However it now appears to have been confirmed that the North Korean leader is alive and well.
As the absolute leader of country with a nuclear weapons programme, Mr Kim's health is matter of intense interest - both regionally and globally.
If something were to happen to Mr Kim, some experts have said it could lead to instability in North Korea.
South Korea's presidential office earlier said it has information that Mr Kim has been staying out of Pyongyang and that there had been no emergency readiness order issued by the North's military or the ruling Workers' Party that likely would have been made if Mr Kim were truly in a bad condition.
On Monday, South Korean president Moon Jae-in repeated an offer to conduct some inter-Korean cooperation projects such as a joint anti-coronavirus quarantine campaign.
Mr Moon also said he will strive for mutual prosperity "based on confidence between Chairman Kim and me and our firm resolve to (achieve) peace".
