Photos obtained by NK News of the construction area of North Korea’s flagship Changjon Street apartment complex have revealed “shocking” structural flaws that indicate a recent building collapse in Pyongyang “will not be an isolated incident”.

The photos, taken in August 2011, suggest the techniques used to build the prestige complex in less than a year could pose both short and long-term risks to the structural integrity of the buildings, several engineering experts told NK News.

“The pictures you sent me which purport to be of [a] high rise block in North Korea are truly shocking,” said Chartered Structural