JiJi Press reported about Katsuhisa Furukawa's publication "Update: Developments at the DPRK's Punggye-Ri Nuclear Test Site between 6 and 14 April 2022".
Katsuhisa Furukawa and his colleagues from the Open Nuclear Network, which analyzes satellite images of the nuclear test site in Punggye-ri, northeastern Korea, which North Korea exploded in 2018, released the latest report on the 15th. Published. He pointed out that North Korea's excavation work on the tunnel may have progressed and the internal structure may have been reinforced.
