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| Battle of Haeju | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Korean War | |||||||
| |||||||
| Belligerents | |||||||
 North Korea | |||||||
| Units involved | |||||||
| Republic of Korea Navy | Korean People's Navy | ||||||
| Strength | |||||||
| 1 patrol boat | 1 minelayer | ||||||
| Casualties and losses | |||||||
| none |
unknown human casualties, 1 minelayer sunk | ||||||
The Battle of Haeju was a small naval battle during the main phase of the Korean War.
Off Haeju Bay in the Yellow Sea, on September 10, 1950, days before the Battle of Inchon, a South Korean navy patrol boat, PC-703, encountered a North Korean navy minelayer sailing vessel. After a brief fight, the North Korean minelayer was sunk with a loss of all crew and no South Korean casualties were reported.
After the minelayer's sinking, PC-703 discovered that the sunken vessel had laid a mine field at the mouth of the Haeju Man and then reported to base the location of the sea mines. Two days later on September 12, PC-703 encountered three small transports and sank them. The three supply vessels were most likely unarmed.