Original:  Following the incident, conservative KMT elements carried out a full-scale purge of Communists in all areas under their control, and even more violent suppression occurred in Guangzhou and Changsha.
Revised:  Following the incident, conservative KMT elements carried out a full-scale purge of Communists in all areas under their control, and violent suppression occurred in Guangzhou and Changsha.
Edit intent: clarity