Three South Korean civilians sent drones to the Democratic People's Republic of Korea (DPRK) four times since the inauguration of the current government, South Korea's unification minister said Wednesday.

Unification Minister Chung Dong-young told a televised press briefing that the investigation results of the joint military-police investigative body revealed four drone infiltrations on Sept. 27, Nov. 16, Nov. 22 last year and Jan. 4 this year.