North Korea continues to use a large converted airport to process and possibly disinfect rail freight imports from China, despite significant easing of pandemic border restrictions in the last six months, according to NK Pro analysis of satellite imagery.

The latest activity points to the possibility that Pyongyang wants to maintain state control of commerce and prevent the spread of politically dangerous media using facilities originally constructed to help keep out COVID-19.

Planet Labs imagery shows the Uiju airport complex near Sinuiju, across from China’s Dandong on the northwest DPRK coast, has remained busy