Montevideo was put under siege from that date and its capture began at about 2:00 A.M., 3 February, having been preceded by several days of bombardment of the weakest part of the defensive wall at a point very close to the site of the modern Anglican cathedral. Once the breach was large enough, the assault began under heavy fire from two contiguous bastions held by the defenders, and was hampered by hides the defenders added to the wall to partially fill the breach. Casualties amongst the British soldiers were heavy as the troops sought an entry point, while being caught in a constant cross-fire.