Chinese security forces have shot dead four Tibetan villagers and wounded 50 others in the on-going crackdown in Driru County, Radio Free Asia said, citing sources. Their names are not known yet but three were from Sengthang village and one from Tinring village. Police arrested Tsultrim Gyaltsen, 27, a Tibetan writer, and his friend Yugyal, 26, a former policeman, from Driru County on charges of “separatist activities”.