
In a combined operation with the ironclad ram CSS Albemarle, Confederate forces under Maj. Gen. Robert F. Hoke, attacked the Federal garrison at Plymouth, North Carolina, on April 17. On April 19, the ram appeared in the river, sinking the USS Southfield, damaging the USS Miami, and driving off the other Union Navy ships supporting the Plymouth garrison. Confederate forces captured Fort Comfort, driving defenders into Fort Williams. On April 20, the garrison surrendered.