Japan asked diplomats to refrain from flying with Korean Air . The plan is to ban a commercial flight above islets in the sea east of Korea . Japan claims it is its responsibility . South Korea says it 's taking the " ` ` seriously ''
Japan asked diplomats to refrain from flying with Korean Air . The move is to protest a test flight above islets in the sea east of Korea . Japan claims it is its territory . South Korea says it 's taking the ban `` seriously ''