South Korea's military fired warning shots after he discovered an unknown object flying from North Korea through the demilitarized zone that separates the two countries, according to South Korean joint staff headquarters.
The object, which said the South Korean military were detected 2 days after Pyongyang fired a ballistic missile test - its second missile test in 7 days. South Korea is not the first time reacted to the object, is directed through its border.
The South responded with machine gun fire after unidentified North Korean aircraft crossed the DMZ at the beginning of last year. "He went North," said South Korean official.
According to reports, North Korea has a fleet of more than 1300 fighters, and an unspecified number of its own unmanned aircraft, according to the report, 2015 to the Congress of the United States Department of defense.
Two suspected North Korean drone was discovered in South Korea in 2014, one on the island Baingan and the other in the city Paju, close to the border.
sections: Politics, World News, Accidents