In this Monday, March 31, 2014 photo released by the South Korea Defense Ministry Wednesday, April 2, 2014, an unmanned drone lies on the ground damaged on Baengnyeong Island, South Korea, near the West Sea border with North Korea when the two Koreas fired hundreds of artillery shells into each other's waters. South Korea suspects that the drone that crashed on the frontline South Korean island was flown by rival North Korea, an official said Wednesday. (AP Photo/South Korea Defense Ministry)