Air China will cancel all flights to North Korea following the April 9 marathon in Pyongyang, two sources told NK News on Thursday.

The cancellation, which comes the same week that a new Air Koryo Pyongyang-Dandong shuttle service was announced, will see the only air route to North Korea serviced by a non-sanctions-designated airline be severed.

“Air China will only fly in the first two weeks of April, then no more in 2017,” a source with information about the development told NK News on Thursday, describing the decision as being linked to a “lack of customers”.

“The Korea International Travel Company (KITC) told me