 One group, commanded by Lieutenant General Katsura Tarō pursued the fleeing Antung garrison (which included General Nie Shicheng) north to Fenghaungcheng, which fell to the Japanese on 30 October, and to Xiuyan to the west of Fenghaungcheng, which was captured on 15 November.This served to isolate the land approaches to the strategic port of Lüshunkou (Port Arthur).The second group under Lieutenant General Oku Yasukata marched north under severe winter conditions to threaten the centre of Fengtian Prefecture, Mukden.