A new apartment block built on the site of last year’s deadly Pyongyang building collapse stands at more than 20 floors high, an analysis of recent satellite imagery reveals.

That makes the new building, whose core structure was completed in less than four months, almost the same size as the 23 floor apartment building which collapsed in May 2014, killing an unknown number of local residents.

Though the design of the now sky blue building appears slightly different to the apartment which once stood in its place, the rapid pace of its construction was cause for concern