Task: Translation
Input (English): A "Western military source", however, claimed that they were launched to the east, in the direction of the Sea of Japan, but still says they landed in North Korean territory.
Output (Japanese): しかし、１つの「西側軍事情報源」は、それらは日本海の方向に東に向けて発射されたが、こちらも北朝鮮領内に落ちたと語る。