Gunfire Traded Across Korean Border. (Hat tip: SnowDawg.)

SEOUL, South Korea — Soldiers from North Korea and South Korea exchanged fire along their border late Monday, but no one was hurt, a South Korean military official said Tuesday.

The incident happened shortly before sunset when North Korean soldiers fired two bullets toward a South Korean guard post in the eastern part of the Demilitarized Zone, said Maj. Kim Tae-hoon of the Joint Chiefs of Staff office.

South Korean soldiers immediately fired back six rounds, Kim said.

He said South Korea doesn’t know what prompted the North troops to open fire and the secretive communist country hasn’t said anything to the South about it.