Japan’s Self-Defense Forces found a cylindrical item that may be a fragment of the North Korean missile launched earlier on Monday, local media reported.
The item was found in the Sea of Japan outside the Japanese exclusive economic zone, the NHK broadcaster reported.
Earlier in the day, the South Korean Defense Ministry reported about a launch of an unidentified missile by North Korea at 7:36 a.m. local time (22:36 GMT on Sunday), however, later in the day, Japan said that Pyongyang had launched a total of four missiles.
Although North Korea has not commented on the missile launch yet, last week Pyongyang promised to respond to the South Korean-US military drills, which kicked off on Wednesday.