South Korea fired warning shots after, Seoul says, North Korean troops crossed their border. The soldiers then went back to the North, Seoul said.

According to the South's Joint Chiefs of Staff, the North Korean troops retreated back across the Military Demarcation Line following loudspeaker warnings and a volley of warning gunfire. No further clashes were reported, but Seoul said it is maintaining heightened vigilance in response to what it called a "serious provocation."

Pyongyang is still supplying missiles, artillery and ammunition to help Moscow fight Kyiv. Read more at straitstimes.com.