The two flag-officers were much mortified at the success of this daring act, due as it was to the unprepared state of the fleets; and Farragut instantly determined to follow her down and attempt to destroy her as he ran by. The execution of the plan was appointed for late in the afternoon, at which time Davis moved down his squadron and engaged the upper batteries as a diversion. Owing to difficulties in taking position, however, it was dark by the time the fleet reached the town, and the ram, anticipating the move, had shifted her berth as soon as the waning light enabled her to do so without being seen. She could not therefore be made out; which was the more unfortunate because, although only pierced twice in the morning, her plating on the exposed side had been much loosened by the battering she received. One XI-inch shot only found her as the fleet went by, and that killed and wounded several of her people. All Farragut's fleet, accompanied by the ram Sumter,[13] detached for this service by Flag-Officer Davis, passed down in safety; the total loss in the action with the Arkansas and in the second passage of the batteries being but 5 killed and 16 wounded. None of this fleet ever returned above Vicksburg again. The Upper Mississippi flotilla in the same encounter had 13 killed, 34 wounded, and 10 missing. The greater part of this loss fell on the Carondelet and the Tyler in the running fight; the former having 4 killed and 10 wounded, besides two who, when a shot of the enemy caused steam to escape, jumped overboard and were drowned. The Tyler lost 8 killed and 16 wounded. The commanding officer of the Arkansas reported his loss as 10 killed and 15 badly wounded.