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Sang-O-Class

The Sang-O ("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.

The Sang-O class was introduced in 1991, produced at Bong Dao Bo Shipyards in Sinpo.

A single unit was captured by the Republic of Korea Navy (South Korea) after it ran aground on 18 September 1996 in the Gangneung submarine infiltration incident.

The seized Sang-O-class submarine was placed on display at Unification Park near Gangneung.