The Jallianwala Bagh was bounded on all sides by houses and buildings and had few narrow entrances, most of which were kept permanently locked. The main entrance was relatively wider, but was guarded by the troops backed by the armoured vehicles. General Dyer ordered troops to begin shooting without warning or any order to disperse, and to direct shooting towards the densest sections of the crowd. He continued the shooting, approximately 1,650 rounds in all, until ammunition was almost exhausted.
