South Korea and North Korea traded accusations after Seoul fired warning shots when Northern troops briefly crossed the border, with Pyongyang denouncing it as a 'serious provocation'.

South Korea fired warning shots at North Korean soldiers that briefly crossed the heavily fortified border earlier this week, Seoul said Saturday after Pyongyang accused it of risking "uncontrollable" tensions.

North Korea has accused South Korea of conducting a "deliberate provocation aimed at military conflict" after Seoul confirmed its soldiers fired ten warning shots toward North Korean troops it claimed had crossed the demarcation line between the two countries on Tuesday.