ROK: North Korean soldiers killed in mine explosions at the front

This is a breaking news story. Please check back later for updates. (Last updated at 4:00 p.m. KST with details on North Korean soldiers re-entering border, background)

Several landmine explosions have maimed or killed North Korean soldiers clearing land and conducting mine operations in frontline areas, the South Korean military said on Tuesday. Proof that the DPRK is conducting operations within the demilitarized zone (DMZ).