Ma Xingrui

China's Central Commission for Discipline Inspection announced an investigation into Guo Yonghang, protégé of senior official Ma Xingrui, for "serious violations of discipline and law." The move deepens the mystery around Ma, the former Guangdong governor and Xinjiang party chief who has not appeared publicly for months. Guo, 60, was named vice-chairman of Guangdong's CPPCC committee in January.