Tensions between North Korea and South Korea rose as a result of the first major exchange of artillery fire in five years. On 4 August 2015, a landmine severely wounded two South Korean staff sergeants patrolling the DMZ.Officials from Seoul accused North Korea of planting three mines near the guard post on the south side of the DMZ, 440 meters (481 yards) away from the demarcation line; officials from Pyongyang denied these accusations. The explosives found were placed in wooden boxes, not unlike mines previously used by North Korea.
"Landmine Detonates on South Korean Side of Demilitarized Zone,"
Journal of Conventional Weapons Destruction: Vol. 19
, Article 15.
Available at: http://commons.lib.jmu.edu/cisr-journal/vol19/iss3/15