Quảng Đức's act increased international pressure on Diệm and led him to announce reforms with the intention of mollifying the Buddhists. However, the promised reforms were not implemented, leading to a deterioration in the dispute. As protests continued, the ARVN Special Forces loyal to Diệm's brother, Ngô Đình Nhu, launched raids across South Vietnam on Buddhist pagodas, seizing Quảng Đức's heart and causing deaths and widespread damage. Several Buddhist monks followed Quảng Đức's example, also immolating themselves. Eventually, a U.S.-backed coup toppled Diệm, who was assassinated on 2 November 1963.