Urgent: DPRK military confirms naval clash with South Korea.

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1Urgent : DPRK military confirms naval clash with South Korea .
2PYONGYANG , Nov. 10 -LRB- Xinhua -RRB- -- The Democratic People 's Republic of Korea -LRB- DPRK -RRB- Tuesday demanded South Korea apologize for a naval clash with the North off the west coast of the Korean Peninsular earlier in the day , state media said .