North Korea’s national airline, Air Koryo, has not operated its scheduled Pyongyang to Kuwait route since February, FlightRadar24 data reveals.

The route, JS161 and return flight JS162, conducts a transit and re-fueling stop in Islamabad, Pakistan and last flew on February 23 and 24. The Pyongyang-Kuwait route is now also absent from the company’s online flight timetable.

The route was operated by North Korea’s Tu-204-300 and TU-204-100v, P-632 and P-633, Russian made jets both with an approximate range of 9,300km.

The route, which started operating in 2011, only ever flew intermittently with historical data showing that the two jets flew a