미군 정찰기 남한상공 잇따라 출동…대북 감시 비행<br /><br />Following North Korea's warning of military exercises, the U.S. has been carrying out aircraft surveillance to monitor the situation.<br />According to aircraft tracking site 'No callsign', a U.S. Air Force spy plane departed from the U.S. base in Japan on Friday afternoon.<br />The aircraft reportedly flew over South Korean airspace from Friday evening until dawn on Saturday.<br />Another U.S. aircraft also flew over South Korean territory including Seoul on Thursday.<br />Observers say that such actions are to strengthen the monitoring of North Korea following recent provocations.<br />
