 British forward observation officers on the far side of the Sittang, continued to call down artillery fire on the Japanese as the survivors attempted to reform and move south; casualties were appalling and it was in reality a one-sided battle.The RAF had also attacked troop concentrations and river craft of all kinds; 273 Squadron and 607 Squadron had killed about 500 Japanese in the village of Hpa-An, when British and Burmese troops came in to take control.The 600 men of the Japanese 13th Naval Guard Force broke out separate from the main body, due to confusion and ambushes and only a handful survived.