 Messines, Terhand and Dadizeele fell on 29 September and by the next day, despite the captured ground becoming another slough of mud, all of the high ground around Ypres was occupied by the Allies.By 1 October, the left bank of the leie (Lys) had been captured up to Comines and the Belgians were east of a line from Moorslede to Staden and Dixmude.The advance continued until 2 October when German reinforcements arrived and the offensive outran its supplies.