Over the weekend, North Korea launched a further batch of balloons carrying waste across the border, causing chaos in the south and provoking anger from Seoul officials. The response from South Korea signals that the heightening tensions between the two may soon spill over into a more significant confrontation.

Debris was found more than a day after the North’s latest balloon launch. South Korea says it’s essentially impossible to track every balloon.

South Korea said Monday it would take "decisive military action" if anyone is killed by the wave of trash-carrying balloons being launched across the border by North Korea.

Mounds of wastepaper and filth will soon be scattered over the border areas and the interior of the ROK [South Korea] and it will directly experience how much effort is required to remove them.’