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North Korea is known for its poverty, instability and totalitarian dictator Kim Jong-un.

So it should be no surprise that its state-owned airline has once again been recognised as the worst in the world for the fourth time.

They were in the news earlier this summer after Kim Jong-un demanded female stewards on board his country's airline wear SHORTER skirts.

But they've fallen short of quality on new a list compiled by UK-based aviation consultancy Skytrax, where 600 air carriers were judged and rated on a number of factors.

The categories where airlines could excel included aircraft efficiency, customer service and the quality of their in-flight meals.

Sadly for Air Koryo, they not only came bottom of the overall rankings, but were also the only airline worldwide to be given a one star rating.

Among complaints are the state of the planes, many of them more than 50-years-old, and the quality of in-flight meals, which are a regular source of concern for many social media users.

Although passengers have much to say about the service and more, though, one Twitter account which purports to be the work of an Air Koryo stewardess often shares the wonderful viewpoint of anyone lucky enough to catch one of the flights.

The airline flies to 14 airports in six countries, but many of the planes are not yet digitalised, according to the Independent.

For those who board the flights as passengers, they can expect to enjoy propaganda films detailing the lives and achievements of North Korea’s leaders.

Comments from Skytrax customer Syed Towheed from the UK include: "The food was a burger with a mystery meat inside which was not very nice and I did not finish it," but they scored it eight out of 10.

Another, L James in Hong Kong, said: "A timewarp experience to say the least my flight from Beijing to Pyongyang was without hitch although you'd be hard pressed to find a team less interested in not only the well being but the safety of the passengers," and rated it a six.

A two out of 10 review from Martin Borland based in Germany criticised the flight: "Food was as expected I guess but the quality was well below all Asian airlines I have ever flown and think it was the cheapest meal ever sampled on a plane.

Elsewhere in the Far East, airlines were performing much better than Air Koryo, with Japan's ANA All Nippon Airways, South Korea's Asiana Airlines, Indonesia's Garuda Indonesia and Singapore Airlines high up in Skytrax’s rankings.