In correlation with the march by Butler to Swift Creek, an infantry division of U.S. Colored Troops marched on Fort Clifton. Meanwhile, five Federal gunboats worked their way up the Appomattox River to begin bombardment on Fort Clifton. However, the assualt did not work as the infantry assault quickly ceased and the gunboats were repelled by Confederate forces with little difficulty. In addition, the Confederate railroad lines were quickly repaired as well.