Gunfire exchanged across border in DMZ between North and South Korea – CNN

North Korea fired gunshots at the wall of a South Korean guard post in the Demilitarized Zone (DMZ), a buffer area which separates the two countries, on Sunday,

The South Korean military responded by broadcasting a verbal warning and returning fire twice, according to protocol outlined in the response manual and on the judgment of the field commander, according to the JCS statement.
The South Korean military said that “the military is in the process of identifying situations over the military communication line with the North and preventing any additional situations from occurring.”
Under the military accord signed between the two Koreas on September 29, 2018, the South and North each demolished 11 guard posts along the DMZ, but dozens of guard posts remain.
There have been exchanges of fire between the Koreas in the past, including in 2017, when a North Korean solider defected at the JSA (Joint Security Area) and, in 2014, when a North Korean defector organization launched balloons of leaflets criticizing the country’s reclusive regime.
It is not known what caused this exchange of fire.

Source: Gunfire exchanged across border in DMZ between North and South Korea – CNN