This picture taken on September 23, 2017 and released from North Korea' s official Korean Central News Agency (KCNA) on September 24 shows a meeting of the youth and students at the Youth Park Open- Air Theatre during an anti- US rally in Pyongyang. (Photo by AFP Photo/KCNA via KNS)





A propaganda troupe perform a flag- waving routine outside the central railway station in Pyongyang, North Korea on September 27, 2017. (Photo by Ed Jones/AFP Photo)





In a photo taken on September 26, 2017, a boy takes a turn hitting a punching bag game at a games arcade at a fun fair in Pyongyang, North Korea. (Photo by Ed Jones/AFP Photo)





A North Korean patrol boat sails along the Yalu River separating China and North Korea, Friday, September 15, 2017. North Korea conducted its longest-ever test flight of a ballistic missile Friday, sending an intermediate-range weapon hurtling over U.S. ally Japan into the northern Pacific Ocean in a launch that signals both defiance to its rivals and a big technological advance. In the background is the city of Dandong in northeastern China's Liaoning province. (Photo by Chinatopix via AP Photo)





This photo taken on September 11, 2017 and released by North Korea' s official Korean Central News Agency (KCNA) on September 12 shows nuclear weapon developers (foreground) waving from their bus during a send- off following their stay in Pyongyang. (Photo by AFP Photo/KCNA)





In this Tuesday, September 12, 2017 photo, Chinese tourists, right, select dried seafood and other products on display for sale at Rason Special Economic Zone, North Korea. U.S. Secretary of State Rex Tillerson on Friday, Sept. 15 calling on all nations to take new measures against Kim Jong Un's regime after North Korea's latest missile launch. (Photo by AP Photo)





In this Tuesday, September 12, 2017, photo, Chinese tourists disembark from a tour boat at Rajin port in Rason Special Economic Zone, North Korea. (Photo by AP Photo)





A North Korean soldier stands at his guard post near the city of Sinuiju, Friday, September 15, 2017, as seen from Dandong in northeastern China's Liaoning province. (Photo by Chinatopix via AP Photo)





A North Korean flag flutters on top of a tower at the propaganda village of Gijungdong in North Korea, in this picture taken near the truce village of Panmunjom, South Korea, August 26, 2017. (Photo by Kim Hong-Ji/Reuters)





Pyongyang city civilians celebrate the successful completion of the hydrostatic test for the intercontinental ballistic rocket installation in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang September 6, 2017. (Photo by Reuters/KCNA)





People react as members who have contributed to the success of the hydrostatic test for intercontinental ballistic rockets arrive in Pyongyang in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang September 6, 2017. (Photo by Reuters/KCNA)





Anglers chat while throwing line during a fishing contest at Pothong riverside in Pyongyang, North Korea Thursday, September 14, 2017. Some 60 people participated in the event and tried to catch fish, such as carp and catfish. (Photo by Jon Chol Jin/AP Photo)





People fill the square of the main railway station to watch a televised news broadcast of the test-fire of an inter-continental ballistic rocket Hwasong-12, Wednesday, August 30, 2017, in Pyongyang, North Korea. By firing a missile over Japan and putting the Asia-Pacific, including U.S. territory Guam, on notice for more and more ambitious tests, the North has won itself greater space for more weapons tests Washington and Seoul see as provocative. (Photo by Kim Kwang Hyon/AP Photo)





North Korean staff members take photos during the 20th ITF World Taewondo Championships in Pyongyang, North Korea on September 21, 2017. (Photo by Ed Jones/AFP Photo)





Spectators watch the ITF World Taewondo Championships in Pyongyang, North Korea on September 21, 2017. (Photo by Ed Jones/AFP Photo)





Child perform during the ITF World Taewondo Championships in Pyongyang, North Korea on September 21, 2017. (Photo by Ed Jones/AFP Photo)





Pedestrians exit a subway before the Arch of Triumph in Pyongyang, North Korea on September 20, 2017. (Photo by Ed Jones/AFP Photo)





Spectators gather to watch a television brodcast of a statement delivered by leader Kim Jong Un outside the central railway station in Pyongyang, North Korea on September 22, 2017. (Photo by Ed Jones/AFP Photo)





Pedestrians pass a fruit vendor through an alleyway in Pyongyang, North Korea on September 22, 2017. (Photo by Ed Jones/AFP Photo)





A man and a child talk through a fence outside a school in Pyongyang, North Korea on September 23, 2017. (Photo by Ed Jones/AFP Photo)





A North Korean soldier stands on the bank of the Yalu river near the North Korean town of Sinuiju, opposite the Chinese border city of Dandong, in China's northeast Liaoning province on September 4, 2017. The five-nation BRICS grouping meeting in China said on September 4 it “strongly deplores” North Korea's latest nuclear test, adding to global condemnation of Pyongyang. (Photo by Greg Baker/AFP Photo)





People watch as a screen shows footage of the launch of a Hwasong-12 rocket, beside a billboard advertising North Korea's Pyeonghwa Motors (R), in Pyongyang on September 16, 2017. North Korea said on September 16 it was seeking military “equilibrium” with the United States as leader Kim Jong-Un vowed to complete Pyongyang's nuclear programme. (Photo by Kim Won-Jin/AFP Photo)





Spectators listen to a television news brodcast of a statment by North Korean leader Kim Jong-Un, before a public television screen outside the central railway station in Pyongyang on September 22, 2017. US President Donald Trump is “mentally deranged” and will “pay dearly” for his threat to destroy North Korea, Kim Jong-Un said on September 22, as his foreign minister hinted the regime may explode a hydrogen bomb over the Pacific Ocean. (Photo by Ed Jones/AFP Photo)





Spectators listen to a television news brodcast of a statement by North Korean leader Kim Jong-Un, before a public television screen outside the central railway station in Pyongyang on September 22, 2017. (Photo by Ed Jones/AFP Photo)





Spectators gather to watch a television news brodcast of a statement delivered by North Korean leader Kim Jong- Un, before a public television screen outside the central railway station in Pyongyang on September 22, 2017. (Photo by Ed Jones/AFP Photo)





Spectators gather to watch a television news brodcast of a statement delivered by North Korean leader Kim Jong- Un, before a public television screen outside the central railway station in Pyongyang on September 22, 2017. (Photo by Ed Jones/AFP Photo)





Korean People' s Army (KPA) soldiers applaud as they watch a screen showing news coverage of an August 29 missile test launch, in a public square outside a train station in Pyongyang on August 30, 2017. North Korea leader Kim Jong- Un has promised more missile flights over Japan, insisting his nuclear- armed nation' s provocative launch was a mere “curtain- raiser”, in the face of UN condemnation and US warnings of severe repercussions. (Photo by Kim Won- Jin/AFP Photo)





A woman carries her belongings as she walks on an overpass at the end of the workday in Pyongyang, North Korea on July 28, 2017. (Photo by Wong Maye-E/AP Photo)





Commuters ride in an electric trolley in downtown Pyongyang, North Korea on July 28, 2017. (Photo by Wong Maye-E/AP Photo)





A school boy sweeps a sidewalk in Pyongyang, North Korea on July 28, 2017. (Photo by Wong Maye-E/AP Photo)