North Korea has threatened to attack a South Korean island over what it calls Seoul's provocative claim that it was victorious in a deadly artillery exchange there two years ago.
North Korea shelled the front-line island in November 2010, killing two marines and two civilians. South Korea returned fire, but Pyongyang says it suffered no military casualties.
South Korean marines believe they won in the artillery exchange and plan to open a "victorious battle memorial hall" on Yeonpyeong Island this week to mark its second anniversary.
An unidentified spokesman at the North Korean military's southwestern front command said in remarks released Thursday that South Korea's moves are aimed at sparking a war and will lead to "the second Yeonpyeong Island disaster."
North Korea has made similar threats without following through.