N. Korea warns of 'powerful counteraction' if S. Korea intrudes 'even a millimeter' into its territory

What happened: North Korea warned of an "immediate and powerful counteraction" if South Korea intrudes even "a millimeter" into its territory, after Seoul signaled measures over a border land mine blast it blamed on Pyongyang. Key numbers: Blast occurred Sept. 21; two South Korean soldiers critically injured. Why it matters: The North's foreign ministry rejected the South's mine-clearing operation as a "farce," raising tension after the South's military concluded North Korea planted the mines.

North Korea warned of an "immediate and powerful counteraction" if South Korea intrudes even "a millimeter" into its territory, after Seoul signaled measures over a border land mine blast it blamed on Pyongyang.

The North's foreign ministry rejected the South's mine-clearing operation as a "farce," raising tension after the South's military concluded North Korea planted the mines.