Tensions were further escalated by South Ossetian authorities. Interethnic conflict generally escalated during the 1990s. The conflict between these militias also escalated into war. Outrage about the police killing quickly escalated. The violence quickly escalated with extensive artillery exchanges. Rivalries with other teams have escalated into serious violence. The Mormons subsequently fled to Nauvoo, Illinois, where hostilities again escalated. Franklin sent them to America, where they escalated the tensions. A number of events dramatically escalated the conflict in late 1920. On several occasions, Belgian general strikes escalated into violence. Eventually, the calls escalated to death threats. The discussion escalated into a heated dispute. The conflict escalated in the 1990s, mainly in remote rural areas. Their rivalry eventually escalated into the bloody Castellammarese War. Protests now escalated to include urban elites.