South Korean President Yoon Suk-yeol said on Wednesday that he would consider suspending a 2018 inter-Korean military pact if the North violates its airspace again, his office said, amid tension over a recent intrusion by North Korean drones.

Yoon made the comment after being briefed on countermeasures to North Korean drones that crossed into the South last week, calling for building an "overwhelming response capability that goes beyond proportional levels," according to his press secretary, Kim Eun-hye.

"During the meeting, he instructed the national security office to consider suspending the validity of the military agreement if North Korea stages another provocation invading our territory," Kim told a briefing.