Following Israel's withdrawal, Palestinian mobs entered the settlements waving PLO and Hamas flags, firing gunshots into the air and setting off firecrackers, and chanting slogans. Four synagogues were vandalized, looted, and torched. Palestinians also looted objects from destroyed homes.[33] Hamas leaders held celebratory prayers in Kfar Darom synagogue as mobs continued to ransack and loot synagogues.[34] Palestinian Authority security forces did not intervene, and announced that the synagogues would be destroyed. Less than 24 hours after the withdrawal, Palestinian Authority bulldozers began to demolish the remaining synagogues.[35][36][37] The settlements' greenhouses, which were supposed to be left intact by Israel, but half of which were demolished by their owners before leaving,[29] were also looted by Palestinian mobs. Palestinian Authority security forces attempted to stop them, but did not have enough manpower to be effective. In some places, there was no security, while some police officers joined the looters.[38]