In Tibet, the majority of Muslims are Hui people. Hatred between Tibetans and Muslims stems from events during the Muslim warlord Ma Bufang's rule in Qinghai such as Ngolok rebellions (1917–49) and the Sino-Tibetan War, but in 1949 the Communists put an end to the violence between Tibetans and Muslims, however, new Tibetan-Muslim violence broke out after China engaged in liberalization. Riots broke out between Muslims and Tibetans over incidents such as bones in soups and prices of balloons, and Tibetans accused Muslims of being cannibals who cooked humans in their soup and of contaminating food with urine. Tibetans attacked Muslim restaurants. Fires set by Tibetans which burned the apartments and shops of Muslims resulted in Muslim families being killed and wounded in the 2008 mid-March riots. Due to Tibetan violence against Muslims, the traditional Islamic white caps have not been worn by many Muslims. Scarfs were removed and replaced with hairnets by Muslim women in order to hide. Muslims prayed in secret at home when in August 2008 the Tibetans burned the Mosque. Incidents such as these which make Tibetans look bad on the international stage are covered up by the Tibetan exile community. The repression of Tibetan separatism by the Chinese government is supported by Hui Muslims. In addition, Chinese-speaking Hui have problems with Tibetan Hui (the Tibetan speaking Kache minority of Muslims).