Kim said Seoul will send a warning via the United Nations to Pyongyang and tighten air defenses as a response to the drones . one diminutive single-engine unmanned propeller planes were found in April and March . They look like hobby shop model airplanes with consumer cameras shoved into them . They do n't have strong military or spy capabilities , but they made it through air defenses . Spring is typically a time of high provocations between South Korea and North .
one diminutive single-engine unmanned propeller planes were found in April and March . They look like hobby shop model airplanes with consumer cameras shoved into them . They do n't have strong military or spy capabilities , but they made it through air defenses . Spring is typically a time of high provocations between South Korea and North .