About the Author
Leo Byrne
Leo Byrne was the Data and Analytic Director at NK News. Follow him on twitter @LeoPByrne
North Korea claimed it had tested a "standardized" nuclear weapon to be mounted on ballistic rockets, during an announcement on Korean Central Television (KCTV) on Friday.
On the same day, an artificial earthquake with a magnitude likely over 5.0 on the Richter Scale was detected near the DPRK's Punggye-ri testing site. The nuclear test is the second to take place in 2016.