Kafar yada labaran ta ce jami'ai na binciken wannan halin rashin natuwa na wannan dan yawon bude idon.
An sami wannan rahoton ne yayin da Shugaban Amurka Barack Obama ke ziyartar Koriya Ta Kudu don tattaunwa da Shugaba Park Geun-Hye.
Ma'aikatar Harkokin Wajen Amurka ta ce ta na sane da wannan rahoton kuma ta shiga tuntubar Sweden, wadda ke wakilta Amurka kan harkokin da su ka shafi Amurkar a Koriya Ta Arewa.