The May 24 incident, also called the Liu Ziran incident and the Reynolds riot, was a 1957 international incident between the United States and Taiwan that started over the killing of an ROC national by an American military officer and the subsequent acquitted court-martial conducted by U.S. military personnel in Taiwan, resulting in protests that culminated in separate mob attacks on the then-U.S. Embassy, the United States Information Service buildings and a police station in Taipei.