A South Korean military drone crashed into a helicopter at an airport, causing a fire, Reuters reported, BTA reported.
South Korea's Defense Ministry said the fire was quickly extinguished and there were no casualties.
Yonhap News Agency reported that an Israeli-made "Heron" reconnaissance drone crashed into a helicopter at the airport in Yangju, north of the South Korean capital Seoul. There was no attempt by North Korea to jam GPS signals during the incident.
In November, a reconnaissance drone of the same type crashed in the same area, Yonhap recalled.