A former Chinese justice minister has been expelled from the ruling Communist Party following an investigation by the anti-corruption watchdog, the first time the government has announced that she was in trouble.

Wu Aiying, 65, was justice minister from 2005 until February this year, according to her official resume, and one of only a handful of senior female officials in China.

In a statement released late on Saturday following a four-day meeting of the party's Central Committee, the largest of its elite ruling bodies, Wu's name was listed as one of a number of officials to have been expelled from the party for graft.