Probably want to conduct nuclear tests there.
The DPRK has begun work on the restoration of the Pungeri nuclear test site . This was reported by Yonhap News with reference to the Open Nuclear Network report. In 2018, the landfill was destroyed in the presence of a small number of foreign journalists.
“Commercial satellite images taken between March 24 and April 6 indicate activity in the №3 tunnel at the facility, such as new fortifications and a recently dug entrance, “the statement said.
In total, the Pungeri landfill consists of four tunnels. It is likely to be used for new nuclear tests – for the first time since 2017.
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Earlier North Korea tested a new type of intercontinental ballistic missile while the world's attention was focused on Ukraine. This happened contrary to international agreements not to do so.