Chinese politician Ma Xingrui is under investigation by the anti-corruption watchdog for his alleged involvement in corruption, marking a rare instance of high-ranking officials facing scrutiny in recent years.

Ma Xingrui, a member of China’s Politburo and the former Communist Party boss of Xinjiang, is being investigated by the anti-corruption watchdog, state news agency Xinhua reported on Friday. He is the third member of the ruling party’s elite body to come under investigation in the current term that began in 2022 – a situation unseen in decades. He Weidong, former vice-chairman of the powerful Central Military Commission (CMC), is also being investigated and was expelled from the party and...