South Korea Fires Warning Shots as North Korean Troops Cross Border Again

Repeated border incursions and landmine explosions escalate tensions between the two Koreas.

20 to 30 North Korean soldiers briefly crossed the DMZ before retreating after warning shots.
This is the second border crossing incident in two weeks, both deemed accidental by Seoul.
North Korean troops have suffered multiple casualties due to landmine explosions while fortifying the border.
The incursions coincide with Russian President Vladimir Putin's visit to North Korea.
Both Koreas have resumed Cold War-style psychological warfare, including propaganda broadcasts and balloon launches.