At midday on 15 June, Brooke's warriors began to attack the fort under cover of their pilan screen. At 4 pm, the attacking party reached within a few yards of the fort, whose defenders started throwing spears and stones in addition to using their muskets and small swivel cannons. At 5:30 pm, the leader of the attacking party, a Malay named Abang Aing, was struck by a musket ball while trying to set fire to the wall. Rentap's warriors beat gongs and cheered in triumph, and the attack party withdrew with their wounded leader that evening.