The 2nd Battalion, Royal Norfolk Regiment, under the command of Lieutenant Colonel Eric Hayes, were attached to the 4th Infantry Brigade, part of the 2nd Infantry Division, which was holding the line of the La Bassée Canal and covering the retreat to Dunkirk. Units became separated from each other and HQ Company had formed a defensive position based at the Duriez farmhouse. They carried on their defence until the afternoon, by which point many were injured and the enemy were shelling the farm. Making a last stand in the open they were outnumbered and surrendered to a unit of the 2nd Infantry Regiment of the SS 'Totenkopf' (Death's Head) Division, under SS Obersturmfuhrer Fritz Knoechlein. The 99 prisoners were marched to some farm buildings on another farm where they were lined up alongside a barn wall. They were then fired upon by two machine guns; 97 were killed and the bodies buried in a shallow pit. Privates Albert Pooley and William O'Callaghan had hidden in a pigsty and were discovered later by the farm's owner, Mme Creton, and her son. The two soldiers were later captured by a Wehrmacht unit and spent the rest of the war as prisoners of war.