Early in the morning 22nd Battalion B and C Companies moved into Bapaume and took over from 20th Battalion, and to billet in the Town Hall. However upon arrival the Town Hall (photograph right) had been destroyed the previous day by a clockwork mine, so the two companies were given the task of shovelling the Town Hall off the road and looking for survivors. A similar mine entirely destroyed the dugout system on the edge of Bapaume that was used by the 6th and 7th Brigades as their headquarters, though fortunately when the mine went off most of the 7th Brigade staff had advanced to Vaulx-Vraucourt. Orders were given that dugouts and houses left intact by the enemy must not be used by staff or troops. Meanwhile the rest of the 6th Brigade was relieved and moved into hut shelters at Mametz Wood.