Two non-scheduled Air Koryo flights from Pyongyang to the coastal city of Wonsan on Tuesday evening have been observed on the departure board at Sunan International Airport, a picture seen by NK News showed.

Because of the same-day arrival of a major South Korean delegation led by President Moon Jae-in – and that the Pyongyang-Wonsan route typically only flies on Mondays – the added services could suggest a high-level visit there by parts or all of the Seoul delegation.

“The airport staff didn’t seem to know what they were or why there were two of the flights (on the board),”