South Korea raised its military alert from level 3 to level 1 and responded to shelling from the North targeting a loudspeaker broadcasting anti-Pyongyang propaganda across the border by firing a few dozen shells at the area from which the North Korean shell was fired on Tuesday.
The Ministry of Defense said, "The South Korean military’s radar system detected North Korea firing a shell at a South Korean front-line military unit in Yeoncheon, Gyeonggi Province, northwest of Seoul, at 3:52 p.m."
The official added that "We have strengthened our military readiness and are closely watching movements of the North’s military’"
The broadcasting of anti-Pyongyang propaganda across the border is viewed as ‘’provacative’’ by North Korea.
No casualities or damage was reported after the shelling directed at the North.
South Korea ordered the evacuation of its border residents to the west of the Korean Peninsula, after North Korea fired a shell at a South Korean military unit on Thursday, escalating inter-Korean tensions.
South Korean News Agency Yonhap has reported that South Korea will hold a National Security Council session to assess the latest sitiuation.
The last direct attack on the South was in November 2010 when North Korea shelled the South Korean border island of Yeonpyeong, causing the deaths of two civilians and two soldiers.