 After a few hours, this detachment was ordered back to the main body as it was determined that holding the position was untenable should it come under attack.The garrison kept any British approach to the city from its area pinned down by sniping, and sent out groups to reconnoitre and supply other garrisons fighting in the College of Surgeons, Marrowbone Lane Distillery and the GPO.By midweek, communication with the GPO was severed.