The British, Gurkhas and Bengal regiments renewed their attacks along the entire front of the entrenchment, and broke through at several points. On the vulnerable Sikh right, engineers blew a breach in the fortifications and British cavalry and horse artillery pushed through it to engage the Sikhs in the centre of their position. Tej Singh had left the battlefield early. It is alleged in many Sikh accounts that he deliberately weakened the pontoon bridge, casting loose the boat at its centre, or that he ordered his own artillery on the west bank to fire on the bridge on the pretext of preventing British pursuit. British accounts claim that the bridge simply broke under the weight of the numbers of soldiers trying to retreat across it, having been weakened by the swollen river. Whichever account is correct, the bridge broke, trapping nearly 20,000 of the Sikh Khalsa Army on the east bank.