Task: Translation
Input (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。
Output (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.