A high-level police officer in North China was removed from his positions and subjected to a discipline investigation for covering up his son's assault of a traffic police officer.

Li Yali, 52, head of the Public Security Bureau of Taiyuan, Shanxi province, and the deputy head of the provincial public security department, was removed from both positions on Thursday evening.

Details of Li's offense was not announced. He was replaced as Taiyuan police chief by Liu Suiji, secretary of Taiyuan city's commission of politics and law.