Chinese authorities have announced an investigation into Ma Xingrui, a member of the Communist Party's Politburo, according to the country's anti-corruption watchdog.

Ma Xingrui served as party secretary of the Xinjiang region in northwestern China from 2021 to 2025. He is also a member of the party's Central Committee, placing him among the senior ranks of China's political leadership.

The investigation is being conducted by China's anti-graft watchdog, though specific details about the nature of the suspected violations have not been disclosed by authorities.

Ma's position as a Politburo member makes this a significant development in China's ongoing anti-corruption efforts. The Politburo is one of the most powerful decision-making bodies within the Communist Party hierarchy.

Xinjiang, where Ma previously served as the top official, is an autonomous region in China's northwest that has been the focus of international attention in recent years due to policies affecting the Uyghur population and other ethnic minorities.

Chinese authorities have not provided a timeline for the investigation or indicated what specific charges Ma might face.