Seeing an unmissable opportunity, leftist China sympathizers roused the injured to rebel against the colonial government, and on December 3 a riot broke out in front of the office of the governor-general. Police armed with batons and water cannons tried to disperse the crowd, but to no avail.
親中的左派團體眼見機不可失，鼓動受傷工人前往殖民政府前抗議。12 月 3 日，澳門總督府前爆發嚴重衝突，警察用警棍及防暴水車驅散示威人士，不過並未奏效。