Kim Jong Un is cutting off his economic lifeline, China, to stave off Covid-19

Kim Jong Un appears to have kicked North Korea's pandemic prevention plan into overdrive, further tightening the country's nearly impassible borders, cutting off nearly all trade with China and even allegedly executing a customs officials for failing to handle imported goods appropriately.

source https://www.cnn.com/2020/11/29/asia/north-korea-covid-executions-trade-intl-hnk/index.html