China's top graft-buster tells party members to give up the ghosts

China's Politburo Standing Committee member Wang Qishan, the head of China's anti-corruption watchdog, stands next to a Chinese flag, in Beijing, China, September 2, 2015. REUTERS/Jason Lee/File Photo

BEIJING (Reuters) - The man in charge of China's war against graft has issued a new warning against Communist Party members believing in "ghosts and supernatural beings" and revealed two top officials had left after systemic corruption was found in their departments.

Since assuming office four years ago, President Xi Jinping has waged battle against deep-seated graft, warning, as others have before him, the problem is so bad it could undermine the party's grip on power.