China's top graft-buster launched a scathing attack on the ruling Communist Party's members on Monday, writing that party political culture remained "unhealthy" and governance weak even after five years of renewed effort to fight the problem.
The comments by Wang Qishan, who runs the party's anti-corruption watchdog, came after sources said a senior official who was considered a contender for promotion at autumn's key party congress is being investigated for "discipline violations".
Wang said the anti-graft inspections that have begun since President Xi Jinping took office five years ago routinely discovered the same problems.
"All of the issues discovered during the inspections reflect the weakening of party leadership, shortcomings in party building and insufficient efforts to strictly enforce party discipline," Wang wrote in the party's official People's Daily.
"Party concepts are faint, organisation is lax and discipline flabby. The root is in the party's internal political life being not serious and unhealthy," he said.