In this February 5, 2021, file photo, staff of the Pongnam Noodle House disinfect the tables and windows of the restaurant in Pyongyang, North Korea. U.N. human rights investigators have asked North Korea to clarify whether it has ordered troops to shoot on sight any trespassers who cross its northern border in violation of the country's pandemic closure. (Photo by Jon Chol Jin/AP Photo/File)
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