(LEAD) N. Korean drones prompt Seoul to boost surveillance
(ATTN: CHANGES headline, lead; ADDS defense ministry's response in paras 15,18)
By Kim Eun-jung
SEOUL, April 2 (Yonhap) -- South Korea is seeking to improve its surveillance capabilities to deal with rising military threats, following the discovery of two drones that Seoul believes belong to Pyongyang near the border, military officials said Wednesday.
A drone was found on Baengnyeong Island, located just south of the western maritime border, on Monday after the two Koreas exchanged artillery fire across the sea boundary during a live-fire drill by the North. A similar drone was discovered in Paju, south of the demilitarized zone, on March 24, and was found to contain photos of military installations and the residential quarters of Seoul's presidential compound.