North Korean soldiers have briefly crossed the heavily guarded border with South Korea. It was the second time in two weeks. When the South Korean army fired warning shots, the soldiers withdrew. The South Korean army said it was a misunderstanding.
According to the South Korean news agency Yonhap, the North Korean soldiers were working in the Demilitarised Zone (DMZ). It said 20 to 30 soldiers had briefly crossed the border with tools. The North Korean soldiers withdrew without firing back after the South Korean army fired a few warning shots.
North Korean activity in the border area has increased in recent weeks. The South Korean military reports that North Korea is building a minefield, a wall and roads in the border area. According to the South Korean army, several mines have already exploded, causing an unknown number of casualties on the North Korean side.
