Sang-O-class submarine

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The Sang-O-class ('Shark' class) of submarines (Hangul: 상어급 잠수함) are diesel-electric coastal submarines in service with the Korean People's Navy, the navy of North Korea. They are the country's second largest indigenously-built submarines. Though North Korean military capabilities are mostly kept classified, it was reported that North Korea maintains 40 Sang-O-class submarines as of February 2021.

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