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.

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.Shortly after the North's launch of trash-filled balloons in May,

South Korea warned of possible military actions if North Korea continues to fly more trash balloons across the border, a rare direct threat of retaliation since Pyongyang started sending them in May.